AP CALCULUS SUMMER PACKET KEY 1 REMEMBER THE NEGATIVE

A DATAORIENTED ACTIVE LEARNING POSTCALCULUS INTRODUCTION TO STATISTICAL CONCEPTS
ALTITUDE AND BOILING POINT NAME INTRO TO CALCULUS T
AN INTERLUDE ON SIGNIFICANT FIGURES AND A LITTLE CALCULUS

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AP CALCULUS (BC) MRS SINGLER PLAINFIELD SOUTH HIGH SCHOOL
AP CALCULUS AB – CHAPTER 2 – AVERAGE RATE
AP CALCULUS EXAM PREPARATION ASSIGNMENTS SPRING 2017 THURSDAY MARCH

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AP Calculus

AP Calculus

Summer Packet Key

1. Remember, the negative in the front and the negative in the exponent have nothing to do w/ each other. Answer:

2. Fraction exponents introduce the radical symbol. Answer:

3. Answer:

4. The 16, , and the y are all bases to the exponent. When you take a power to another power, multiply the exponents. Answer: .

5. Nothing can be simplified here. Answer:

6. The top factors, follow the steps. Answer:

7. When dividing by a fraction, multiply by the reciprocal. Answer:

8. You can NOT take the -1/2 exponent to all three terms b/c they are added, not multiplied. Simplify inside the ( ) first. Answer:

9. You can only take the log of a positive number, not zero. Remember, in correct domain notation, brackets indicate inclusion. Answer:

10. The numerator of a fraction can be anything, so look to the denominator. The denominator can not be zero. Answer:

11. Look to the denominator, factor it. , Answer:

12. You can take 2 to any power, once again, the denominator can’t be zero.

Answer:

13. You can only take the square root of a non-negative number. The first domain must be 3 or larger, the second must be -3 or larger. So we must consider both. Answer:

14. Here’s one where you have to look at both. The numerator can’t be negative, the denominator can’t be zero. The top’s domain is 4.5 or greater and the denominator can’t be -4.5. Answer:

15. The numerator can be anything, but the denominator must be positive. Answer:

16. This one is a little tricky. First, you can only take the square root of a non-negative number. Tangent is positive in the first and third quadrants and is undefined at and . Answer, from :

17. You must factor first, then make a sign chart. . When x is smaller than -2, is positive. When x is in between -2 and 7, is negative. When x is larger than 7, is positive. Answer:

18. The numerator of a fraction can be anything, so look to the denominator. The denominator can not be zero. Answer:

19. The numerator, since it’s the cube root, can be anything. To check the denominator you must factor first, then make a sign chart. . When x is smaller than -5, is positive. When x is in between -5 and 6, is negative. When x is larger than 6, is positive. Answer:

20. The numerator of a fraction can be anything, so look to the denominator. The denominator can not be zero. Answer, from :

21. Answer:

22. Look at this problem as two terms, factor out what is common from each term. is common in both terms. If you take those out, you are left with which equals . Answer:

23. Answer:

24. Factor, solutions are 4 and -4, make a sign chart. Also check to see if the inequality sign has a bar under it to determine if you use [ ] or ( ). Answer:

25. Same procedure as #24. Answer:

26. Subtract the 10 first. Then it is like #24 and #25. This one is inclusive. Answer:

27. Same as #26. Answer:

28. This is one difficult, you need to factor this by grouping. You could also use your calculator to find the zeros. Follow my work. The zeros are at -4, -1, and 1. The sign chart looks like this.

Answer:

29. Subtract sine, then factor. , . For problems involving trig, I narrow the domain to . Answer:

30. Down 4

31. Right 4

32. First reflect it in the x-axis (upside down), then left 2 (Remember, always stretch/reflect first)

33. First vertically stretch by 5, then move up 3

34. Horizontally shrink by 2

35. All parts of the graph that are below the x-axis need to be reflect up. No part of the graph should be below the x-axis.

35. Two ways: First, look at the graph, if it is reflected in the y-axis, it is even. If you can take your calculator and turn it upside and still have the same graph, it is odd. The second method is to look at the exponents if possible. If all of them are even, the function is even. If all are odd, it is odd. Answer: Even

36. Odd

37. Neither

38. Odd

40. Answer:

41. Distribute AND subtract the 2, you must always have a 0 on one side of the equals sign. , Answer:

41. You must use the Quadratic Formula. Answer:

41. This one doesn’t factor and gives nonreal solutions. Answer: No solution

41. , Answer:

41. Since fractions are involved, try to get common denominators, then use proportional rules.

Answer:

46. , Answer:

47. , Answer:

48. , Answer:

49. Vertical asymptotes are found at values that make ONLY the denominator zero. If a value of x makes both the denominator and numerator zero, there is a hole. Horizontal asymptotes are also known as end behavior. Answer: VA: , HA:

49. For the horizontal asymptote, since the bigger exponent is in the denominator, the function will always approach zero. Answer: VA: , HA:

49. Answer: VA: none, HA:

49. Factor before deciding either. , at x = 3, there is a hole.

Answer: VA: , HA:

49. Since the largest exponent is in the numerator and denominator, the horizontal asymptote can be found by looking at the leading terms, . Answer: VA: , HA:

49. Answer: VA: , HA:

49. In all of the following, when you have fractions within fractions, always try to simplify by first using common denominators. , Answer:

49. , Answer: (Do NOT cross the x’s off)

49. , Answer: (You can not simplify any further)

49. , Answer: or

49. , Answer: or

49. , Answer:

61. , Answer: 9

62. , Answer: 7

63. , Answer: 0.25

64. , Answer: 3

65. Common denominators and proportion/ratio rules.

Answer:

65. Same as #65,

Answer:

65. With this, multiply all terms by 6, that would get rid of the fractions. , Answer:

65. Factor all denominators first, this makes seeing the common denominator a little easier. , once you get all of the denominators the same, you don’t need them anymore. Just make sure your solutions are not 5 and/or -5. , Answer:

65. Since 2 terms have the same denominator, move them to the same side and combine them, then cross-multiply. , Answer:

65. This should be the easiest of the group, cross-multiply and solve.

Answer:

65. KNOW YOUR UNIT CIRCLE. Answer:

65. KNOW HOW TO FACTOR. , Answer:

65. Give exact answers when possible. , Answer:

65. Don’t forget the plus/minus sign. , Answer:

65. Always have a quadratic trinomial set equal to zero before you try to factor. ,

Answer:

65. Same as #75.

Remember, cosine can never be more than 1, or less than -1, Answer:

77. , Answer:

78. This one factors too, make sure to subtract 1 to start. . So, , which leads us to . The first equation can not be solved using your unit circle, but the second one can. To solve the first equation, use . Answer: (If you must round, ALWAYS go to 3 places)

78. Factor first (difference of 2 squares), . If we set each factor equal to zero, it’s hard to solve when there are two trig. functions involved. But, if you use a little common sense, and your unit circle, it’s not that hard. and . There are 4 places where sine and cosine are equal or opposites. Answer:

78. Function notation, this information is the same as (2, -5) and (-3, 1). Answer: , or if you want to get rid of all fractions, and write it in standard form,

78. Point-slope needs to be used as much as possible. It is the easiest form b/c the only math involved is finding slope. Many people make mistakes when finding ‘b’, that doesn’t happen in this form. Answer:

78. Use the slope formula, Answer:

78. Rate of change = slope, Answer: B, C, A

78. Distance formula comes from Pythagorean Theorem,

Answer:

78. Switch all x’s and y’s, then solve for y.

Answer:

78. Two ways to do this, use your calculator or use algebra (substitution). Since y is solved for, substitute x – 1 into the other equation for y. , remember, always get zero on one side before factoring. , ,

Answer: (5, 4) and (-1, -2)

78. With logarithms, coefficients become exponents, adding is multiplying, and subtracting is dividing, when condensing. Answer:

78. KNOW YOUR UNIT CIRCLE

Answers: a) b) c) d) -2 e) Undefined f) 1

78. P iecewise functions are not as confusing as they look. They are just pieces of functions put together over a given domain, to make one function. Remember, all functions must pass the vertical line test, so keep that in mind. When x is less than -1, use the parabola , when x = -1, put a point at 0, when x is greater than -1, use the line 6 – 4x. Also notice the open and closed circles. Answer:

78. You can plug numbers in, or look at the graph. Answer: Left , Right

91. a) Parabola opening upward with vertex (3, 2), Answer: Domain , Range

2. Shape of a V, with vertex (4, -3), Answer: Domain , Range

3. You can take the cube root of any number, Answer: Domain = Range =

4. The 5 is the amplitude, Answer: Domain , Range

5. The function tanx has asymptotes at etc. But when you change it to , all of the asymptotes are shifted to the right .

Answer: Domain is all real number except (n is any integer), Range:

2. A positive base can be taken to any power, but will never yield a negative answer.

Answer: Domain , Range

92. Area and circumference should not be difficult. The arc length (s) is the same fraction of the circumference as 100 degrees is to 360 degrees. Answer: Area = , Circumference = ,

92. Average of the bases times height, must solve for height first. ,

Answer:

92. Use law of cosines to find the missing side, then use law of sines to find the missing angles.

, make sure to store this answer for later use.

, Answer: Missing side is 6.159, missing angles are 46.936 and 103.064

92. Subtract the two volumes, volume of a cylinder is , Answer: 933.053

92. Answer:

92. The missing side is , find the area of the rectangle. , this problem has 2 solutions. Answer: x = 30.845 ft or x = 89.155 ft

92. Answer: a) 16 elk b) 159779 years c) 1216 elk

92. If you can’t factor or see identities, change everything into sine and cosine.

Answer: or or

100. Long division:

Synthetic: Answer:

92. Complete the square, follow my work. , to find the ?, take half of the ‘b’ term and square it. , if you had 16 inside of the ( ), you have to do the opposite on the outside to keep everything balanced. But, since there is a -3 out front, you really subtracted 48, so you must add 48 to make up for that. , now simplify and write it in factored form. Answer:

102. Answer:

103. Put one side into y₁, and other into y₂, find the point(s) where they intersect. Answer: x = -0.391

104. Solve for y and look at their slopes, if they are different, they must intersect. Answer: Yes

105. Answer: a) 0 b) -2 c) 2 and -2

AP CALCULUS SUMMER PACKET KEY 1 REMEMBER THE NEGATIVE
C H 83 WKST AP CALCULUS BC NAME AREA
CALCULUS 1 NAME WKST – TANGENT LINE SLOPE

Tags: calculus summer, negative, remember, packet, summer, calculus

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