AP Calculus AB Summer Packet 2

AP Calculus AB is a college level course covering material traditionally taught in the first semester of college
calculus. All students need a strong foundation to be ready for the rigorous work required throughout the year.
Often times, Calculus students get frustrated with incorrect answers that stem from Algebra and not by Calculus.
Completing the review packet before the beginning of the course will be helpful.
**This packet consists of review topics studied in the pre-requisite math courses. There are many examples of
each type of problem. You should try each type of problem and mark those problems you still have questions
over. We will take some time during each class in the beginning weeks to go over some problems from this
packet. Because we also have to begin on the Calculus curriculum right away, this time to review will be limited.
All students are encouraged to come in before and after school for any additional help on this packet. Even
though this packet will not be collected, the first assessment for this course will be over these topics. (School
begins on August 14, 2017. The test over these pre-requisite skills will be on August 31.)
Half of the AP exam will be taken without a calculator so it is best if you can do the majority of this work using a
pencil, paper, and your brain. Parts of this course will focus on how to use the graphing calculators. You are
strongly encouraged to get one of your own (preferably a TI-83 or TI-84). The school has a limited number of
graphing calculators for check out. You will have access to desmos.com and the Grapher program on the Mac
computers while doing homework.
All students will have the opportunity to take the AP Calculus AB Exam in May for a fee. Some colleges will
award college credit depending the AP Exam score. You are encouraged to research different Advanced
Placement policies of universities and colleges for more information.
If you feel you need help with some of these topics, the best resource may be the internet. There are great sites
where you can just type in the topics to get help. There are some sites listed below.
Some websites for reference:
https://www.khanacademy.org/
http://www.purplemath.com/modules/index.htm
www.coolmath.com
Online Calculators:
desmos.com
https://mathway.com
I can also give you an electronic copy of the pre-calculus book (and a TI emulator) before you leave for the
summer. You must stop by my room with a thumb drive prior to June 1. I will not be at the school during the
summer.
See you in August!
Mrs. Cunningham
Formula Sheet
Slope-intercept form 𝑦 = π‘šπ‘₯ + 𝑏
Logarithms π‘₯ = π‘™π‘œπ‘”π‘ 𝑁 is equivalent to 𝑏 π‘₯ = 𝑁.
Point-slope form 𝑦 βˆ’ 𝑦1 = π‘š(π‘₯ βˆ’ π‘₯1 )
Equality property If π‘™π‘œπ‘”π‘ π‘š = π‘™π‘œπ‘”π‘ 𝑛, then π‘š = 𝑛.
Standard form 𝐴π‘₯ + 𝐡𝑦 = 𝐢
Product rule π‘™π‘œπ‘”π‘ π‘šπ‘› = π‘™π‘œπ‘”π‘ π‘š + π‘™π‘œπ‘”π‘ 𝑛
Quotient rule π‘™π‘œπ‘”π‘
π‘š
𝑛
= π‘™π‘œπ‘”π‘ π‘š βˆ’ π‘™π‘œπ‘”π‘ 𝑛
Quadratic Standard Form π‘Žπ‘₯ 2 + 𝑏π‘₯ + 𝑐 = 0
Power rule π‘™π‘œπ‘”π‘ π‘šπ‘˜ = π‘˜π‘™π‘œπ‘”π‘ π‘š
Quadratic Intercept Form 𝑦 = π‘Ž(π‘₯ βˆ’ 𝑝)(π‘₯ βˆ’ π‘ž)
where p and q are x-intercepts.
Change of base formula π‘™π‘œπ‘”π‘ 𝑁 =
log 𝑁
log 𝑏
Quadratic Vertex Form 𝑦 = π‘Ž(π‘₯ βˆ’ β„Ž)2 + π‘˜ where
(h,k) is the vertex.
Trigonometry Identities
The x-coordinate of the vertex, if in standard form, is
βˆ’π‘
π‘₯ = 2π‘Ž (also used to find the axis of symmetry).
Substitute this value into the function and solve for y
for the y-coordinate.
2
βˆ’π‘±βˆšπ‘ βˆ’4π‘Žπ‘
Quadratic Formula π‘₯ =
2π‘Ž
𝑏
Fractional exponent √π‘₯ π‘Ž =
π‘Ž
π‘₯ ⁄𝑏
1
csc π‘₯ = sin π‘₯
sin π‘₯
tan π‘₯ = cos π‘₯
1
sec π‘₯ = cos π‘₯
cot π‘₯ =
cot π‘₯ =
1
tan π‘₯
cos π‘₯
sin π‘₯
𝑠𝑖𝑛2 π‘₯ + π‘π‘œπ‘  2 π‘₯ = 1
π‘‘π‘Žπ‘›2 π‘₯ + 1 = 𝑠𝑒𝑐 2 π‘₯
1
Negative exponent π‘₯ βˆ’π‘Ž = π‘₯ π‘Ž
1 + π‘π‘œπ‘‘ 2 π‘₯ = 𝑐𝑠𝑐 2 π‘₯
Zero exponent π‘₯ 0 = 1 π‘“π‘œπ‘Ÿ π‘₯ β‰  0
Product rule 𝑏 π‘š βˆ™ 𝑏 𝑛 = 𝑏 π‘š+𝑛
Quotient rule
Power rule
π‘π‘š
𝑏𝑛
= 𝑏 π‘šβˆ’π‘›
(𝑏 π‘š )π‘˜
=𝑏
For βˆ’1 ≀ x ≀ 1, arccos π‘₯ or π‘π‘œπ‘  βˆ’1 π‘₯ = 𝑒
where 0 ≀ 𝑒 ≀ πœ‹.
π‘šπ‘˜
Power of product (π‘Žπ‘)π‘š = π‘Žπ‘š βˆ™ 𝑏 π‘š
π‘Ž π‘š
Power of quotient (𝑏)
For βˆ’1 ≀ x ≀ 1, arcsin π‘₯ or π‘ π‘–π‘›βˆ’1 π‘₯ = 𝑒
βˆ’πœ‹
πœ‹
where 2 ≀ 𝑒 ≀ 2 .
π‘Žπ‘š
= π‘π‘š
For all real numbers π‘₯, arctan π‘₯ or π‘‘π‘Žπ‘›βˆ’1 π‘₯ = 𝑒
βˆ’πœ‹
πœ‹
where 2 ≀ 𝑒 ≀ 2 .
PARENT FUNCTIONS
I. EQUATIONS OF LINES
a) Find the equation of the line passing through the point (5, -3) with a slope of 4/5 in slope-intercept form.
b) Find the equation of the line passing through the points (-3, 6) and (1, 2) in slope-intercept form.
c) In point-slope form, find the equation of the line with x-intercept (2, 0) and y-intercept (0, -3).
5
d) Find the equation of the line that passes through the point (2, 8) and parallel to the line 𝑦 = 6 π‘₯ βˆ’ 1.
e) Find the equation of the line that is perpendicular to the y-axis and passes through the point (4, 7).
II. FUNCTIONS
Let 𝑓(π‘₯) = π‘₯ 2 π‘Žπ‘›π‘‘ 𝑔(π‘₯) = 2π‘₯ + 5. Evaluate each.
a) 𝑓(2)
b) 𝑔(βˆ’3)
c) 𝑓(4π‘š βˆ’ 1)
d) 𝑔(𝑓(π‘₯))
Below is the graph of the piecewise function β„Ž(π‘₯). Evaluate each.
a) β„Ž(2)
b) β„Ž(βˆ’1)
c) For what x does β„Ž(π‘₯) = 0?
Find
𝑓(π‘₯+β„Ž)βˆ’π‘“(π‘₯)
β„Ž
a) 𝑓(π‘₯) = 9π‘₯ + 3
for each function.
b) 𝑓(π‘₯) = π‘₯ 2 βˆ’ 4
e) 𝑓(𝑔(1))
III. INEQUALITIES AND INTERVAL NOTATION
Complete the table with appropriate notation or graph.
Solution
Interval Notation
a) βˆ’2 < π‘₯ ≀ 4
b)
Graph
[-1, 7)
c)
d)
(3, ∞)
IV. DOMAIN AND RANGE OF FUNCTIONS
Using interval notation or inequalities, state the domain and range for each function.
a) 𝑓(π‘₯) = (π‘₯ βˆ’ 3)2 βˆ’ 1
b) 𝑔(π‘₯) = √π‘₯ + 6 + 2
c)
V. ANALYZING GRAPHS
Graph these on your calculator.
On what interval are these functions increasing, decreasing, and constant? Approximate your answers.
a) 𝑓(π‘₯) = βˆ’π‘₯ 3 βˆ’ 8π‘₯ 2 + 8π‘₯ + 5
b) 𝑔(π‘₯) = π‘₯ 4 βˆ’ 2π‘₯ 2
VI. INTERCEPTS AND INTERSECTIONS
Graph these on your calculator.
Find the x and y-intercepts of each. Round your answers to four decimal places.
a) 𝑓(π‘₯) = π‘₯ 4 + π‘₯ βˆ’ 3
b) 𝑦 2 = π‘₯ 3 βˆ’ 4π‘₯
Find the points of intersection for each. (HINT: Graph each side of the equation first.) Round your answers to
four decimal places.
a) π‘₯ 5 + π‘₯ 2 = π‘₯ 3 + 5
b) π‘₯ 2 + π‘₯ βˆ’ 16π‘₯ + 39 = π‘₯ 2 βˆ’ π‘₯ βˆ’ 9
VII. SYMMETRY
To check for symmetry about the x-axis, substitute –y in for y and simplify. Do you have the original function?
To check for symmetry about the y-axis, substitute –x in for x and simplify. Do you have the original function?
To check for symmetry about the origin, substitute –x in for x and –y in for y and simplify. Do you have the
original function?
Algebraically verify that the function is symmetric with respect to the y-axis.
a) β„Ž(π‘₯) = π‘₯ 4 βˆ’ 5π‘₯ 2 + 3
Algebraically verify that the function is symmetric with respect to the x-axis.
b) 𝑦 = 4π‘₯ βˆ’ 12
Algebraically verify that the function is symmetric with respect to the origin.
c) 𝑓(π‘₯) =
π‘₯3
10
βˆ’π‘₯
VIII. TRANSFORMATIONS OF GRAPHS
For each function below:
i.
identify the parent function
ii.
describe the sequence of transformations that transform the parent graph f into the graph of function g.
a) 𝑓(π‘₯) = (π‘₯ + 3)2
d) 𝑠(π‘₯) =
1
π‘₯βˆ’6
βˆ’1
IX. FACTORING
Factor each expression completely.
a) π‘Žπ‘ + 𝑐𝑑 βˆ’ π‘Žπ‘ βˆ’ 𝑏𝑑
1
c) β„Ž(π‘₯) = (2 π‘₯)
e) 𝑝(π‘₯) = log(βˆ’π‘₯)
f) π‘Ÿ(π‘₯) = 3 βˆ™ 2π‘₯ + 10
b) π‘₯ 2 βˆ’ 36
c) 3π‘₯ 2 βˆ’ 11π‘₯ βˆ’ 4
3⁄
2
g) 𝑒 2π‘₯ βˆ’ 4𝑒 2π‘₯ + 4
d) π‘₯ 3 βˆ’ 8
(HINT: Factor by grouping.)
e) π‘₯ 4 + 11π‘₯ 2 βˆ’ 42
(HINT: Factor using u-substitution.)
h) Factor using the GCF and simply.
3π‘₯ 2 (12π‘₯+18)sec(3π‘₯ 2 )+6π‘₯𝑠𝑒𝑐(3π‘₯ 2 )
(6π‘₯ 2 βˆ’24)
2
b) 𝑔(π‘₯) = βˆ’4√π‘₯
f) π‘₯
+π‘₯
1⁄
2
(HINT: Factor using u-substitution.)
X. QUADRATIC FUNCTIONS
For each quadratic function:
i.
Identify whether the graph of the parabola opens upward or downward.
ii.
Identify the coordinates of its vertex.
iii.
State whether there is a minimum or maximum. Give this value.
iv.
State the axis of symmetry.
v.
Describe any transformations from the parent graph, 𝑓(π‘₯) = π‘₯ 2 .
vi.
Give the x and y-intercepts as coordinate points.
a) 𝑓(π‘₯) = βˆ’3π‘₯ 2 + 4π‘₯
b) 𝑔(π‘₯) = 2π‘₯ 2 + 7π‘₯ + 6
Solve each equation. Use any appropriate method.
a) 8π‘₯ 2 βˆ’ 4 = 68
b) 3π‘₯ 2 + 5π‘₯ = 2
c) π‘₯ 2 βˆ’ 10π‘₯ + 4 = 0
For each quadratic function, complete the square. Then identify the vertex of each parabola.
a) 𝑦 = π‘₯ 2 + 6π‘₯ + 13
b) 𝑦 = π‘₯ 2 βˆ’ 4π‘₯ βˆ’ 7
XI. EXPONENTS AND LOGARITHMS
Simplify each expression.
1
1
a) π‘™π‘œπ‘”4
b) π‘™π‘œπ‘”10 10 ⁄2
16
d) 2π‘™π‘œπ‘”10 √π‘₯ + π‘™π‘œπ‘”10 π‘₯
1⁄
3
e)
3
1
32π‘™π‘œπ‘”3 5
f) 𝑒 ln 2π‘₯+5
Solve each equation. Identify extraneous solutions is applicable.
1
a) 5π‘₯+1 = 25
b) 3 = 32π‘₯+2
c) π‘™π‘œπ‘”2 π‘₯ 2 = 3
d) π‘™π‘œπ‘”6 (π‘₯ + 3) + π‘™π‘œπ‘”6 (π‘₯ + 4) = 1
XII. OPERATIONS OF RATIONAL EXPRESSIONS
Add or Subtract. You may need to factor the numerators or denominators first. Simplify your answers.
a)
8
π‘₯ 2 +3π‘₯βˆ’10
+
3
π‘₯βˆ’2
b)
3
π‘₯
1
c) 3π‘™π‘œπ‘”3 3 βˆ’ 4 π‘™π‘œπ‘”3 81 + 3 π‘™π‘œπ‘”3 27
βˆ’
π‘₯+8
π‘₯ 2 +5π‘₯
c) √π‘₯ + 3 +
1
√π‘₯+3
Multiply or divide. You may need to factor the numerators or denominators first. Simplify your answers.
π‘₯ 2 +5π‘₯+6
15π‘₯
8π‘Ž2
3π‘Ž
a)
βˆ™
b)
÷
8π‘₯ 4
7π‘₯+21
π‘Ž+3
π‘Ž2 βˆ’9
XIII. RATIONAL FUNCTIONS
For each function, find
i.
the x and y-intercepts
ii.
the vertical and horizontal asymptotes
iii.
graph the function
a)
𝑔 (π‘₯ ) =
3π‘₯βˆ’2
𝑓(π‘₯ ) =
b)
π‘₯+3
Solve each equation.
π‘₯
π‘₯+4
a) +
=4
5
3
b)
7
𝑛+4
βˆ’
βˆ’7
c)
π‘₯βˆ’6
2
π‘›βˆ’3
=
2π‘›βˆ’9
β„Ž(π‘₯ ) =
c)
𝑛2 +π‘›βˆ’12
XIV. COMPLEX FRACTIONS
Simplify.
a)
25
βˆ’π‘Ž
π‘Ž
5+π‘Ž
4
b)
2 βˆ’ π‘₯+2
10
5+π‘₯+2
c)
π‘₯
1
βˆ’
π‘₯+1 π‘₯
π‘₯
1
+
π‘₯+1 π‘₯
2
𝑝
π‘₯+2
π‘₯ 2 βˆ’1
+3=
7
𝑝+6
XV. TRIGONOMETRY
Unit Circleβ€”Below is a unit circle with all values between 0 and 2πœ‹. Memorize it and try to fill out the blank unit
circle on the following page. Can you use the values of sin and cos to calculate each tangent value?
IF YOU NEED HELP MEMORIZING THESE VALUES, PLEASE SEE BELOW...
Using your unit circle, give the exact answer for each. (Try these from memory.)
πœ‹
πœ‹
a) cos 6
πœ‹
b) sin 4
πœ‹
c) tan 3
πœ‹
d) sin 3
πœ‹
e) tan 6
πœ‹
f) cos 4
πœ‹
g) cot 4
πœ‹
h) csc 3
πœ‹
j) cos 2
k) sin
m) sin(βˆ’3πœ‹)
n) tan
πœ‹
p) sec 3
q) csc
i) sec 6
11πœ‹
l) tan
4
9πœ‹
βˆ’5πœ‹
2
o) cos
4
βˆ’πœ‹
r) cot
6
βˆ’7πœ‹
6
3πœ‹
2
Evaluate each inverse trigonometric expression. Note: Some values may not exist.
a) π‘Žπ‘Ÿπ‘π‘‘π‘Žπ‘›
√3
3
e) tan(arctan √3)
βˆ’βˆš2
b) π‘π‘œπ‘  βˆ’1 (
2
c) π‘ π‘–π‘›βˆ’1 2
)
1
f) sin(π‘ π‘–π‘›βˆ’1 2 )
g) π‘π‘œπ‘  βˆ’1 (cos
d) arcsin
3πœ‹
4
)
2
h) tan(arccos 3)
(HINT: Draw a reference
triangle.)
Solve each equation on the interval [0,2πœ‹). Give exact answers.
βˆ’1
a) sin π‘₯ = 2
b) tan π‘₯ = √3
c) 2cos π‘₯ = βˆ’βˆš2
Graph 1 period for each function.
a) 𝑦 = βˆ’2sin(4π‘₯)
1
π‘₯
b) 𝑔(π‘₯) = 3 cos 2
√3
2
c) β„Ž(π‘₯) = tan 3π‘₯
XVI. SIMPLIFYING EXPRESSIONS
Simplify each expression.
a)
(π‘₯+1)3 (π‘₯βˆ’2)+3(π‘₯+1)2
(π‘₯+1)4
π‘₯2
b)
2(
b)
√π‘₯+1 + 1
π‘₯
(π‘₯ 3 +2)(2π‘₯)βˆ’(π‘₯ 2 )(3π‘₯ 2 )
)(
π‘₯ 3 +2
(π‘₯ 3 +2)2
)
Rationalize the denominator or numerator.
a)
π‘₯
1βˆ’βˆšπ‘₯βˆ’2
XVII. LONG DIVISION AND SYNTHETIC DIVISION FOR POLYNOMIALS
Divide using long division or synthetic division for polynomials. Make sure to express your answers in polynomial
form.
a)
b)
c)
d)
e)
π‘₯ 3 βˆ’4π‘₯ 2 +2π‘₯+5
π‘₯βˆ’2
2π‘₯ 3 +4π‘₯ 2 βˆ’5
π‘₯+3
2π‘₯ 3 βˆ’4π‘₯+7π‘₯ 2 +7
π‘₯ 2 +2π‘₯βˆ’1
4π‘₯ 3 βˆ’2π‘₯ 2 βˆ’3
2π‘₯ 2 βˆ’1
12π‘₯ 3 βˆ’11π‘₯ 2 +9π‘₯+18
4π‘₯+3