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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Find the domain and range.
1) {(5,3), (-11,-8), (-1,9), (6,-7), (-2,-1)}
A) domain = {-1, 6, -7, -1, 9}; range = {5, 3, -11, -8, -2}
B) domain = {5, -11, -2, 6, -1}; range = {3, -8, -1, -7, 9}
C) domain = {3, -8, -1, -7, 9}; range = {5, -11, -2, 6, -1}
D) domain = {5, 3, -11, -8, -2}; range = {-1, 6, -7, -1, 9}
Answer: B
2) {(-7,7), (-1,-7), (-3,-5), (-3,-8)}
A) domain = {-7, -3, -1, -13}; range = {7, -5, -7, -8}
B) domain = {7, -5, -7, -8}; range = {-7, -3, -1}
C) domain = {-7, -3, -1}; range = {7, -5, -7, -8}
D) domain = {-7, -3, -1, 3}; range = {7, -5, -7, -8}
Answer: C
3) {(-4,-3), (-4,-7), (-10,4), (5,-4), (-9,9)}
A) domain = {-10, -3, 5, -9, -4}; range = {4, -4, 9, -7, -3}
B) domain = {-10, 5, -9, -4}; range = {4, -4, 9, -7, -3}
C) domain = {4, -4, 9, -7, -3}; range = {-10, -10, 5, -9, -4}
D) domain = {-10, 13, 5, -9, -4}; range = {4, -4, 9, -7, -3}
Answer: B
4) {(7,7), (-1,-3), (-2,-7), (-2,3)}
A) domain = {7, -1, -2}; range = {7, -3, -7, 3}
B) domain = {7, -1, -2, -12}; range = {7, -3, -7, 3}
C) domain = {7, -1, -2, 2}; range = {7, -3, -7, 3}
D) domain = {7, -3, -7, 3}; range = {7, -1, -2}
Answer: A
5) {(-4,6), (9,3), (1,-1), (-6,-9)}
A) domain = {3, 6, -1, -9}; range = {9, -4, 1, -6}
B) domain = {9, -4, 1, -6}; range = {3, 6, -1, -9}
C) domain = {9, -4, 1, -6}; range = {3, 3, 6, -1, -9}
D) domain = {9, -4, 1, -6}; range = {3, -6, 6, -1, -9}
Answer: B
6) {(-3, 13), (-2, 8), (0, 4), (2, 8), (4, 20)}
A) domain: {-3, -2, 2, 4}; range: {13, 8, 4, 20}
B) domain: {13, 8, 4, 20}; range: {-3, -2, 2, 4}
C) domain: {13, 8, 4, 20}; range: {-3, -2, 0, 2, 4}
D) domain: {-3, -2, 0, 2, 4}; range: {13, 8, 4, 20}
Answer: D
7) {(29, -3), (4, -2), (4, 0), (8, 2), (20, 4)}
A) domain: {-3, -2, 2, 4}; range: {29, 8, 4, 20}
B) domain: {-3, -2, 0, 2, 4}; range: {29, 8, 4, 20}
C) domain: {29, 8, 4, 20}; range: {-3, -2, 0, 2, 4}
D) domain: {29, 8, 4, 20}; range: {-3, -2, 2, 4}
Answer: C
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Decide whether the relation is a function.
8) {(-2, 1), (3, 8), (6, 4), (9, 7), (11, -1)}
A) function
B) not a function
Answer: A
9) {(-5, 3), (-2, 6), (2, -7), (6, -5)}
A) not a function
B) function
Answer: B
10) {(-6, -8), (-3, 9), (-1, -5), (2, 3)}
A) not a function
B) function
Answer: B
11) {(-5, 8), (-2, -9), (1, 6), (6, 4)}
A) not a function
B) function
Answer: B
12) {(1, 2), (3, 2), (4, -8), (9, -6), (12, 1)}
A) not a function
B) function
Answer: B
13) {(-5, -1), (-3, -2), (-1, 1), (-1, -4)}
A) not a function
B) function
Answer: A
14) {(-5, 1), (-3, -8), (3, -7), (3, 2)}
A) function
B) not a function
Answer: B
15) {(-6, 2), (-6, -3), (2, 3), (6, 7), (10, -9)}
A) not a function
B) function
Answer: A
16) {(3, -9), (3, 7), (4, 1), (8, 7), (12, 1)}
A) function
B) not a function
Answer: B
17) {(-6, 5), (-6, -4), (-1, -8), (3, 4), (9, 6)}
A) not a function
B) function
Answer: A
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18) Women's Shoe Sizes
USA 3 4 5 6 7 8 9
Japan 20 21 22 23 24 25 26
A) not a function
B) function
Answer: B
19) Tallest Roller Coaters in U.S. Amusement Parks
Amusement Park Name Park A Park A Park B Park C Park B Park A
Coaster Height (feet) 72 69 65 64 60 57
A) function
B) not a function
Answer: B
Find the indicated function value.
20) Find f(3) when f(x) = x2 - 4x + 2.
A) -5
B) 23
C) -1
D) 19
Answer: C
21) Find f(-1) when f(x) = 5x2 + 5x - 3.
A) -3
B) 3
C) 7
D) -7
Answer: A
22) Find f(1) when f(x) = 18x + 12.
A) -6
B) 30
C) 19.2
D) 6
Answer: B
23) Find f(2) when f(x) = 2.
A) 0
B) 2
C) -2
D) -4
Answer: B
24) Find f(0) when f(x) = x2 + 5x - 7.
A) 0
B) 49
C) 7
D) -7
Answer: D
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