Practice Exam Answers

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3

What is the domain of the relation graphed?

A
domain: start set x such that x is in the real numbers end set
B
domain: start set x such that x is in the natural numbers end set
C
domain: start set x such that negative 1 is less than or equal to x comma x is less than or equal to 1 end set
D
domain: start set x such that negative 4 is less than or equal to x comma x is less than or equal to 4 end set
4

Which polynomial function could be represented by the graph?

A
f of x is equal to 2 x squared minus 2 x minus 4
B
f of x is equal to x squared plus x minus 2
C
f of x is equal to 2 x squared plus 2 x minus 4
D
f of x is equal to x squared minus x minus 2
5

Which expression is a possible leading term for the polynomial function graphed?

A
17 x to the 12th power
B
22 x to the 9th power
C
negative 18 x to the 14th power
D
negative 10 x to the 7th power
6

Which represents g of x , the translated function?

A
g of x is equal to x minus 4 cubed plus 6
B
g of x is equal to x plus 6 cubed minus 4
C
g of x is equal to x minus 6 cubed minus 4
D
g of x is equal to x plus 4 cubed plus 6
8

James bought two shirts and three pairs of pants for 87 dollars Matthew bought two pairs of pants and one shirt for 53 dollars Assuming each pair of pants costs the same amount and each shirt costs the same amount, how much does one pair of pants cost?

A
the fraction with numerator the 2 by 2 matrix row 1, 2 87 row 2, 2 53 and denominator negative 4 is equal to 17 dollars
B
the fraction with numerator the 2 by 2 matrix row 1, 87 3 row 2, 53 1 and denominator negative 4 is equal to 18 dollars
C
the fraction with numerator the 2 by 2 matrix row 1, 87 3 row 2, 53 2 and denominator 1 is equal to 15 dollars
D
the fraction with numerator the 2 by 2 matrix row 1, 2 87 row 2, 1 53 and denominator 1 is equal to 19 dollars
9

The cost of a taxi ride is a linear function of the distance traveled. If a 5 -mile ride costs 12 dollars and a 9 -mile ride costs 14 dollars , which equation can be used to find the cost, c , for any distance, m , traveled?

A
c minus 12 is equal to 2 times open paren m minus 5 close paren
B
c minus 9 is equal to 1 half times open paren m minus 5 close paren
C
c minus 12 is equal to 1 half times open paren m minus 5 close paren
D
c minus 9 is equal to 2 times open paren m minus 5 close paren
10

Cheryl has 56 dollars and wants to buy as many notebooks as she can to donate to her school. If each notebook costs 1 point 6 0 dollars , which inequality shows n , the maximum number of notebooks she can buy with her money?

A
56 n is less than or equal to 1 point 6
B
1 point 6 n is greater than or equal to 56
C
56 n is greater than or equal to 1 point 6
D
1 point 6 n is less than or equal to 56
13

Use the zero product property to find the solutions to the equation 2 x squared plus x minus 1 is equal to 2

A
x is equal to negative 3 halves or x is equal to 1
B
x is equal to negative 2 or x is equal to 1 half
C
x is equal to 1 or x is equal to 3 halves
D
x is equal to negative 1 half or x is equal to 2
14

If f of negative 5 is equal to 0 , what are all the factors of the function f of x is equal to x cubed minus 19 x plus 30 ? Use the Remainder Theorem.

A
open paren x minus 2 close paren times open paren x plus 5 close paren
B
open paren x plus 2 close paren times open paren x minus 5 close paren times open paren x plus 3 close paren
C
open paren x plus 2 close paren times open paren x minus 5 close paren
D
open paren x minus 2 close paren times open paren x plus 5 close paren times open paren x minus 3 close paren
16

Solve for x in the equation x squared plus 11 x plus 121 fourths is equal to 125 fourths

A
x is equal to negative 11 plus or minus the fraction with numerator 5 square root of 5 and denominator 2
B
x is equal to negative 11 halves plus or minus the fraction with numerator 5 square root of 5 and denominator 2
C
x is equal to negative 11 halves plus or minus 25 halves
D
x is equal to negative 11 plus or minus 25 halves
19

Mr. Lee asks a student to solve the following system of linear equations. negative 28 is equal to negative 40 q minus 14 p 10 q plus 4 is equal to 2 p Which ordered pair open paren p comma q close paren is the solution to the system?

A
open paren 2 comma 0 close paren
B
open paren negative 2 comma negative 7 fifths close paren
C
open paren negative 7 fifths comma negative 2 close paren
D
open paren 0 comma 2 close paren

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