Editorial Reviews. About the Author. William Ma is a math consultant and former chair of the 5 Steps to a 5: AP Calculus AB 4th Edition, site Edition. by . Download Now: bestthing.info # PDF ~ 5 Steps to a 5 AP Calculus AB (5 Steps to a 5 on the. 5 STEPS TO A 5. ™. A Perfect Plan for the Perfect Score on the Advanced Placement Exams. AP Calculus AB/BC Questions to Know by Test Day Zachary.
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The total time allotted for both sections is 3 hours and 15 minutes. Below is a summary of the different parts of each section. However, they may not use a calculator at that time.
Please note that you are not expected to be able to answer all the questions in order to receive a grade of 5. Advanced Placement Exam grades are given on a 5-point scale with 5 being the highest grade. Not a bad score! The cut-off points for each grade 1—5 vary from year to year. Below is a rough estimate of the conversion scale: Remember, these are approximate cut-off points. If you wish to use a graphing calculator that is not on the approved list, your teacher must obtain written permission from the ETS before April 1st of the testing year.
Choose the study plan that is right for you. Look at the brief profiles below.
These may help you to place yourself in a particular prep mode. You are a full-year prep student Approach A if: 1. You are the kind of person who likes to plan for everything far in advance … and I mean far … ; 2. You like detailed planning and everything in its place; 4.
You feel you must be thoroughly prepared; 5. You hate surprises. You are a one-semester prep student Approach B if: 1. You get to the airport 1 hour before your flight is scheduled to leave; 2. You are willing to plan ahead to feel comfortable in stressful situations but are okay with skipping some details; 3.
You feel more comfortable when you know what to expect, but a surprise or two is cool; 4. You are a six-week prep student Approach C if: 1.
You get to the airport just as your plane is announcing its final boarding; 2. You work best under pressure and tight deadlines; 3. You decided late in the year to take the exam; 5. You like surprises; 6.
You feel okay if you arrive 10—15 minutes late for an appointment. These areas will be part of your year-long preparation. Break the book in. Write in it. Toss it around a little bit … Highlight it. Fall asleep knowing you are well prepared. Given the time constraints, now is not the time to try to expand your AP Calculus curriculum. Rather, it is time to limit and refine what you already do know. Use the answer sheet to record your answers.
After you have finished working the problems, check your answers with the answer key. The problems in the diagnostic exam are presented in small groups matching the order of the review chapters.
Your results should give you a good idea of how well you are prepared for the AP Calculus AB exam at this time. Using a graph or a table of values of the given function Example 1 Find the limit: Factoring and simplifying 3. Substituting directly 2. Example 4 Find the limit: Limits and Continuity 89 Example 6 Find the limit: See Figure 6. You see that the graph of f x approaches 3 as x 2x 3 sin 2x approaches 0.
Existence of a Limit Let f be a function and let a and L be real numbers. You notice that as x approaches 3 from the right. One-Sided Limits Let f be a function and let a be a real number.
Then the right-hand limit: Then the two-sided limit: Note that f 1 is also equal to 1. You see that as x approaches 1 from the right. Therefore the limit exists. Limits and Continuity 91 b As x approaches 1 from the left. As x approaches 0, so does 3x. Verify your result with a calculator. As h approaches 0, so do 3h and 2h. Using the quotient rule for limits, you have lim result with a calculator. Verify your result denominator is 0 through negative values. Do easy questions first.
The easy ones are worth the same number of points as the hard ones. In this. Then examine: The graph of f x shows that as x increases in the first quadrant, f x x goes higher and higher without bound. As x moves to the left in the second quadrant, f x again goes higher and higher without bound. Figure 6. See Example 1 b on page See Example 2 on page Thus, f x has no horizontal asymptote.
The graph shows that f x oscillates back and forth about the x -axis. When entering a rational function into a calculator, use parentheses for both the numerator and denominator, e. A rational function is continuous everywhere. Factor the denominator and set it equal to 0: Intermediate Value Theorem: If a function f is continuous on a closed interval [a.
Theorems on Continuity 1. Continuity of a Function over an Interval A function is continuous over an interval if it is continuous at every point in the interval. Continuity of a Function at a Number. A polynomial function is continuous everywhere. Limits and Continuity 6.
Theorems on Continuity Continuity of a Function at a Number A function f is said to be continuous at a number a if the following three conditions are satisfied: Continuity of a Function over an Interval.
If the functions f and g are continuous at a. Condition 3: Condition 1: Condition 2: Explain your answer. The number c is a root of g x. Begin by finding g 1 and g 7. Example 6 A function f is continuous on [0. Limits and Continuity [—3. If g x has a root. The function f is continuous.
Evaluate lim Answer: Find the limits of the following: Explain why or why not. Find the limit: Find the horizontal and vertical asymptotes of the graph of the function 1. If f has only one root. Evaluate lim Figure 6. Evaluate lim [—2. The graph of a function f is shown in Figure 6. Given f x as shown in Figure 6. Find lim. Write an equation of the line passing through the point 2.
In this case. Divide every term in both the numerator and denominator by the highest power of x. The degree of the monomial in the numerator is 2 and the degree of the binomial in the denominator is 1. Using the product rule. Since the degree of the polynomial in the numerator is 2 and the degree of the polynomial in the denominator is 3. Since the degree of the polynomial in the numerator is the same as the degree of the polynomial in the denominator.
Divide both numerator and denominator sin 3x by x and obtain lim x. Since f x is a rational function. The graph of f indicates that: Checking with the three conditions of continuity: Factoring and setting the denominator equal to 0. As x approaches 1 from either side. Examining the graph in your calculator. Limits and Continuity Since the 3 perpendicular line passes through the point 2. Choice E. As for vertical asymptotes. To find horizontal asymptotes.
Chain Rule. It is also related to the slope of a tangent line. The Sum. Note that f x is read as f prime of x. Power Rule. Other symbols of the derivative of a function are: Note that the converse of the statement is not necessarily true. Definition of the Derivative of a Function. See Figures 7. See Figure 7. The tangent is parallel to the x -axis. The result is One way is to use the [nDeriv] function of the calculator. From the main Home screen. Example 2 dy. One way to use the d [Differentiate] function.
Or using your calculator. Go to the Home screen. Using the sum and difference rules. Differentiation Example 4 Using your calculator. The result is 7. Derivatives of Trigonometric Functions. Inverse Trigonometric.
Derivatives of Inverse Trigonometric Functions. Of course. Using the chain rule. Example 4 dy. Then dy. For all of the above exercises. Then x dx x Therefore. Thus the derivative of ln 5 is 0. Procedure for Implicit Differentiation Procedure for Implicit Differentiation Given an equation containing the variables x and y for which you cannot easily solve for y dy by doing the following: Factor out on the left side of the equation.
Solve for. Move all terms containing dx right side. Differentiate each term of the equation with respect to x. There is no penalty for incorrect answers. Solve for: Differentiate each term with respect to x: Move all terms containing to the left side of the equation and all other terms dx dy dy to the right: Move all dx dx dx dy dy: Note that y is treated as dy dy a function of x. Example 5 dy. Differentiation Step 3: Factor out dy: The slope of the tangent to the curve at 4.
Here are two examples. Example 1 The graph of a function f on [0. Method 1: Selected values of f are shown below.
Differentiation Method 3: Differentiate with respect to y: Solve for dy. Differentiation Example 2 Example 1 could have been done by using implicit differentiation. Since y 1 is strictly increasing.
Differentiate each term implicitly with respect to x. You can continue to differentiate f as long as there is differentiability. But always select an answer to a multiple-choice question. Dx2 y. Dx3 y. Using the slope of the line segment joining 2. Using implicit differentiation. Differentiation 7. Using a calculator.
Part B Calculators are allowed. Find dy. Let f be a continuous and differentiable function. The graph of a function f on [1. Applying the product rule. Calculator Let f be a continuous and differentiable function. Applying the quotient rule. Applying the power rule. Since 3e 5 is a constant. Thus f x has an inverse. Differentiate with respect to x: Thus the point 0.
The graph of y 1 is strictly increasing. Since the degree of the polynomial in the denominator is greater than the degree of the polynomial in the numerator. Therefore the slope is 0. Checking the three conditions of continuity: Differentiation Thus. Mean Value Theorem. Many questions on the AP Calculus AB exam involve working with graphs of a function and its derivatives. Do not forget to change it back to Radians after you have finished using it in Degrees.
See Figure 8. Mean Value Theorem If f is a function that satisfies the following conditions: To find c. Find all values of c. Note f x is a polynomial and thus f x is continuous and differentiable everywhere.
Using the Mean Value Theorem. Determine if the hypotheses of the Mean Value Theorem are satisfied on the interval [0.
5 Steps to a 5 AP Calculus AB 2014-2015.pdf
Since f x is defined for all real numbers. You might need this to find the volume of a solid whose cross sections are equilateral triangles.
Since f x is a polynomial. Extreme Value Theorem If f is a continuous function on a closed interval [a. Since f x is a x rational function. Since f x is not continuous on [0. Test for Increasing and Decreasing Functions.
To find the critical numbers of f x. Let f be a function defined at a number c. Figure 8. Find the intervals on which f is increasing or decreasing. Find the critical numbers of f. Set up a table.
Determine intervals. Write a conclusion. You have to be careful in filling in the bubbles especially when you skip a question. Use the First Derivative Test.
Find the relative extrema of f. Graphs of Functions and Derivatives 1. Find all critical numbers of f x. Find all critical numbers of f. Apply the Second Derivative Test. Using the First Derivative Test Step 1: Using the First Derivative Test. See Figures 8. There are some textbooks that define a point of inflection as a point where the concavity changes and do not require the existence of a tangent at the point of inflection. The converse of the statement is not necessarily true.
There are two points of inflection: In that case. Graphs of Functions and Derivatives Note that if a point a. The graph of y 2. Using the [Zero] function. Graphs of Functions and Derivatives Step 4: Which of the following statements is true? Determine if the function has any symmetry. Using the numbers in Step 4. Set up a table using the intervals. Find any horizontal. Graphing without Calculators. Determine the domain and if possible the range of the function f x.
You can earn many more points from other problems.
Sketch the graph.. Do not linger on a problem too long. If necessary. Set up a table: Possible points of inflection: Critical numbers: No asymptote 5. Range 0. Relative maximum: No symmetry 3. Here are some examples. Example 1 The graph of a function f is shown in Figure 8.
The graph is concave downward on a. Which of the following is true for f on a. Since f is strictly increasing. Find where f has the points of inflection. Find where f has its absolute extrema. Find the intervals where f is concave upward or downward.
Sketch a possible graph of f. Find the values of x where f has change of concavity. Graphs of Functions and Derivatives 8. Given f is twice differentiable. Find the values of x where f has a relative minimum. Given the function f in Figure 8. Show that the hypotheses of the Mean Value Theorem are satisfied on [0.
The graph of f is shown in Figure 8. Which of the following has the largest value: Sketch the graphs of the following functions indicating any relative extrema. Graphs of Functions and Derivatives Given the graph of f in Figure 8. Find dx2 Take ln of both sides. Find critical numbers. Now we check the end points. Check for tangent line: And since the point 0. Check intervals. The correct answer is A. Step 6: Set up a table Table 8.
Step 8: Graphs of Functions and Derivatives Table 8. Set up table as below: Step 7: Sketch the graph. Some textbooks define a point of inflection as a point where the concavity changes and do not require the existence of a tangent. Step 9: Using the functions of the calculator. A fundamental domain of y 1 is [0. Note that the graph has a symmetry about the y -axis. Represent the given information and the unknowns by mathematical symbols. Shadow Problem. Common Related Rate Problems.
Read the problem and. If the equation contains more than one variable. Inverted Cone Water Tank Problem. Write an equation involving the rate of change to be determined. Two of the most common applications of derivatives involve solving related rate problems and applied maximum and minimum problems.
Common Related Rate Problems Example 1 When the area of a square is increasing twice as fast as its diagonals.
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Since Note: Solve the resulting equation for the desired rate of change. Example 2 Find the surface area of a sphere at the instant when the rate of increase of the volume of the sphere is nine times the rate of increase of the radius.
Find the volume of the cone at the instant when the rate of increase of the volume is twelve times the rate of increase of the radius.
Example 3 The height of a right circular cone is always three times the radius. Surface area of a sphere: Differentiate each term of the equation with respect to time. Let z represent the diagonal of the square. Write the answer and indicate the units of measure. Substitute all known values and known rates of change into the resulting equation.
Define the variables. Applications of Derivatives Let r. Let V be the volume of water in the tank. Usually that is the correct one. See Using similar triangles. How fast is the water level rising when the water is 5 meters deep? See Figure 9.
The height of the cone is 10 meters and the diameter of the base is 8 meters as shown in Figure 9. Set up an equation: Building Light 6 ft ft Figure 9. Substitute known values. How fast is his shadow on the building becoming shorter when he is 40 feet from the building? Differentiate both sides of the equation with respect to t.
Write an equation using similar triangles. Applications of Derivatives Solution: Let x be the distance between the balloon and the ground.
Find dt Step 4: Differentiate both sides with respect to t. Figure 9. Area and Volume Problems.
Differentiate to obtain the first derivative and to find critical numbers. Write an equation that is a function of the variable representing the quantity to be maximized or minimized. Distance Problem Find the shortest distance between the point A Let P x. Determine what is given and what is to be found. Read the problem carefully and if appropriate. Distance Problem. If the equation involves other variables.
Determine the appropriate interval for the equation i.. Applications of Derivatives 9. Write the answer s to the problem and. Draw a diagram. Check the function values at the end points of the interval. Using the distance formula. Apply the First Derivative Test. Special case: In distance problems.
Using Synthetic Division. Find the dimensions of the rectangle so that its area is a maximum. Step 4 could have been done using a graphing calculator. Apply the Second Derivative Test: Note that at the endpoints: The domain of V is [0. STEP 4. Let x be the length of a side of the square to be cut from each corner. Differentiate V x. Applications of Derivatives 10 Step 6: Common Core Edition E-books eb3.
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Resource Pack E-books cca8b8a.Applications of Integrals. Part A consisting of 2 questions which allow the use of a calculator. Find where f has the points of inflection. Differentiation Thus. You are willing to plan ahead to feel comfortable in stressful situations but are okay with skipping some details; 3.
Solve the resulting equation for the desired rate of change. Emergent Nature: Feet
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