CDN ED Psychology Themes and Variations 3rd Edition Weiten Test Bank.pdf

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b b b b b b b b



Ch.b2 FunctionsbandbTheirbGraphs
2.1 Functions
1 Determineb Whetherb ab Relationb Representsb ab Function

MULTIPLEb CHOICE.b Chooseb theb oneb alternativeb thatb bestb completesb theb statementb orb answersb theb question.

Determineb whetherb theb relationb representsb ab function.b Ifb itb isb ab function,b stateb theb domainb andb range.
1)

4b →b20
7b →b35
10b→b50
13b→b65

A) function B) function C) notbab function
domain:b {4,b 7,b 10,b 13} domain:{20,b 35,b 50,b 65}
range:b {20,b 35,b 50,b 65} range:b {4,b 7,b 10,b 13}

2)

Alice snake
Bradb catbdo
Carl g

A) function B) function C) notbab function
domain:b{Alice,bBrad,bCarl} domain:b{snake,bcat,bdog}
brange:b{snake,bcat,bdog} brange:b {Alice,b Brad,b Carl

}

3)

Alice cat
Bradb dog
Carl

A) function range:b {11,b B) function
domain:b{Alice,bBrad,bCarl}bran 6,b 2,b 18} domain:b{cat,bdog}b range:b{Alice,bBra
ge:b{cat,bdog} d,bCarl}

4)b{(-2,b-7),b(0,b5),b(5,b0),b(6,b-1)}
A) function B)b function
domain:b{-2,b 0,b 5,b 6} domain:b{-7,b5,b0,b-1}
range:b{-7,b5,b0,b-1} range:b {-2,b 0,b 5,b 6}

5)b {(5,b -2),b (1,b -1),b (1,b 0),b (2,b 1),b (10,b 3)}
A) function B)b function
domain:b {5,b 2,b 1,b 10} domain:b {-2,b -1,b 0,b 1,b 3}
range:b{-2,b-1,b0,b1,b3} range:b {5,b 2,b 1,b 10}

6)b {(-3,b 11),b (-
2,b 6),b (0,b 2),b (2,b 6),b (4,b 18)} B) function
A) function domain:b {11,b 6,b 2,b 18}
domain:b {-3,b -2,b 0,b 2,b 4} range:b{-3,b-2,b0,b2,b4}
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b b b b b b b b


C) notbab function




C)b notb ab function




C)b notb ab function




C) notbab function




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b b b b b b b b


b9
7)b {(5.88,b 7.58),b (5.888, -7.6),b ( ,b0),b (1.29, -5)}
7
A) function
b9b
domain:b {5.88,b 5.888,b ,b 1.29}
7
range:b {7.58,b -7.6,b 0,b -5}
B) function
domain:b {7.58,b -7.6,b 0,b -5}
b9b
range:b {5.88,b 5.888,b ,b 1.29}
7
C) notbab function

Determineb whetherb theb equationb definesb yb asb ab functionb ofb x.
8) yb=bx4
A) function B)b notb ab function

1
9) yb=b
b


x
A) function B)b notb ab function

10) yb=b|x|
A) function B)b notb ab function

11) y2b=b6b-bx2
A) function B)b notb ab function

12) yb=b±b 1b-b5x
A) function B)b notb ab function

13) xb=by2
A) function B)b notb ab function

14) y2b+bxb=b2
A) function B)b notb ab function

15) yb=b4x2b-b9xb+b9
A) function B)b notb ab function

5xb-b1
16) yb=b
b

xb+b1
A) function B)b notb ab function

17) x2b-b4y2b=b1
A) function B)b notb ab function

18) xb-b4yb=b5
A) function B)b notb ab function

19) -9xb+bx2b-b97b=by
A) function B)b notb ab function


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b b b b b b b b



2 Findbtheb Valueb ofb ab Function

MULTIPLEb CHOICE.b Chooseb theb oneb alternativeb thatb bestb completesb theb statementb orb answersb theb question.

Findb theb valueb forb theb function.
1) Findbf(-4)b whenb f(x)b =bx2b-b3xb+b1.
A) 29 B)b 27 C)b 3 D)b 5

x2b-b8b
2) Findbf(1)b whenb f(x)b =b .
xb-b2
A) 7 B)b-b9 C)b-b1 D)b-b
b
7
b

3

3) Findb f(-9)b whenb f(x)b =b|x|-b 6.
A) 3 B)b-15 C)b15 D)b-3

4) Findbf(7)bwhenbf(x)b =b x2b+b5x.
A)b 2 21 B) 74 C) 30 D)b 3 6

5) Findbf(-x)b whenb f(x)b=b3x2b-b4xb+b1.
A) 3x2b+b4xb+b1 B)b -3x2b +b4xb-b1 C)b 3x2b +b4xb-b1 D)b-3x2b+b4xb+b1

x
6) Findbf(-x)b whenb f(x)b =b
b b
.
x2b+b8
b b -xb -xb
b b x -x
b b
A) 2b B) C) D)
x +b8 x2b-b8 -x2b+b8 -x2b+b8


7) Findb-f(x)bwhenbf(x)b =b2x2b+b5xb+b2.
A) -2x2b -b5xb -b2 B)b 2x2b-b5xb+b2 C)b 2x2b-b5xb-b2 D)b-2x2b-b5xb+b2

8) Findb-f(x)bwhenbf(x)b =b|x|b+b9.
A) -|x|b-b9 B)b|-x|b+b9 C)b-|x|b+b9 D)b |-x|b-b9

9) Findbf(xb -b1)bwhenbf(x)b=b5x2b +b5xb-b6.
A) 5x2b -b5xb-b6 B)b-5x2b +b5xb-b6 C)b 5x2b-b5xb+b4 D)b 5x2b-b25xb+b4

x2b-b4b
10) Findbf(xb +b1)bwhenbf(x)b=b .
xb+b4
x2b+b2xb-b3 x2b+b2xb+b5 x2b+b2xb-b3 x2b-b3
A) B) C) D)
xb+b5 xb+b5 xb-b3 xb+b5

11) Findb f(-x)b whenb f(x)b =b2x2b -b 2xb -b 4.
A)b 2x2b +b2xb-b4 B)b-2x2b +b2xb-b4 C)b-2x2b+b2xb+b4 D)b2x2b+b2xb+b4


12)b Findb f(2x)b whenb f(x)b = 9x2b-b7x.
A)b b 36x2b-b14x B)b2b 9x2b-b7x C)b b 18x2b-b14x D)b b 18x2b-b28x




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