AnswersAlgebra 2 with ProbabilityRadical Expressions and Functions

Practice Test Answers

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1
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What is the range of the translated function?

A
start set y such that y is greater than or equal to 0 end set
B
start set y such that y is less than 0 end set
C
start set y such that y end set is a real number
D
start set y such that y end set is a natural number
2
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Which statement is true about the function f of x is equal to negative square root of negative x ?

A
The domain and range of the function have opposite signs.
B
The range of the function is all positive real numbers.
C
The domain of the function is all negative real numbers.
D
The domain and range of the function are the same.
3

What are the solutions to the equation square root of x squared plus 2 x minus 10 end root is equal to square root of x plus 20 end root ?

A
x is equal to negative 5 , x is equal to 6
B
x is equal to negative 6 , x is equal to 5
C
x is equal to 5 , x is equal to 6
D
x is equal to negative 6 , x is equal to negative 5
5

Which expression is equivalent to square root of the fraction with numerator 8 and denominator x to the 6th power end root ? Assume x is greater than 0

A
the fraction with numerator 2 square root of 2 and denominator x cubed
B
the fraction with numerator x cubed square root of 2 and denominator 2
C
the fraction with numerator square root of 2 and denominator 2 x cubed
D
the fraction with numerator 4 square root of 2 and denominator x cubed
6

What is the simplified form of the following expression? 4th root of 16 x to the 8th power y to the 12th power z to the 4th power

A
2 x squared start absolute value y cubed z end absolute value
B
2 x to the 4th power y to the 8th power
C
4 x to the 4th power y to the 8th power
D
4 x squared start absolute value y cubed z end absolute value
7

Which expression is equivalent to cube root of the fraction with numerator 75 A to the 7th power b to the 4th power and denominator 40 A to the 13th power c to the 9th power ? Assume A is not equal to 0 and c is not equal to 0

A
the fraction with numerator A cubed b open paren cube root of 15 b squared close paren and denominator 6 c cubed
B
the fraction with numerator A cubed b open paren cube root of 15 b squared close paren and denominator 2 c cubed
C
the fraction with numerator b times open paren cube root of 15 b close paren and denominator 2 A squared c cubed
D
the fraction with numerator b times open paren cube root of 15 b close paren and denominator 2 A c
9

Which expression is equivalent to open paren 16 x to the 8th power y to the negative 12 power close paren raised to the 1 half power ?

A
the fraction with numerator 8 x to the 4th power and denominator y to the 6th power
B
negative 8 x to the 4th power y to the 6th power
C
negative 4 x to the 4th power y to the 6th power
D
the fraction with numerator 4 x to the 4th power and denominator y to the 6th power
10

What is the solution of 4 plus square root of 5 x plus 66 end root is equal to x plus 10 ?

A
x is equal to negative 10
B
x is equal to 3
C
x is equal to negative 10 or x is equal to 3
D
no solution
11

Which is the graph of the function f of x is equal to square root of 9 fourths x end root ?

A
Image with description On a coordinate plane with x-axis ranging from 0 to 9 in increments of 1, y-axis ranging from 0 to 4 point 5 in increments of 0 point 5. A smooth curve originates from origin and passes through the points 1 comma 0 point 4 4 and 4 comma 0 point 8 9.
B
Image with description On a coordinate plane with x-axis ranging from 0 to 9 in increments of 1, y-axis ranging from 0 to 9 in increments of 1. A smooth curve originates from origin and passes through the points 1 comma 1 point 5 and 4 comma 3.
C
Image with description On a coordinate plane with x-axis ranging from 0 to 9 in increments of 1, y-axis ranging from 0 to 4 point 5 in increments of 0 point 5. A smooth curve originates from origin and passes through the points 1 comma 0 point 6 6 and 4 comma 1 point 3 3.
D
Image with description On a coordinate plane with x-axis ranging from 0 to 9 in increments of 1, y-axis ranging from 0 to 9 in increments of 1. A smooth curve originates from origin and passes through the points 1 comma 2 point 2 5 and 4 comma 4 point 5.
12

Which table represents points on the graph of h of x is equal to cube root of negative x plus 2 ?

A
Table with 6 columns and 2 rows.Row 1: Column 1, 'x'; Column 2, 'negative 6'; Column 3, '1'; Column 4, '2'; Column 5, '3'; Column 6, '10' Row 2: Column 1, 'y'; Column 2, '2'; Column 3, '1'; Column 4, '0'; Column 5, 'negative 1'; Column 6, 'negative 2'
B
Table with 6 columns and 2 rows.Row 1: Column 1, 'x'; Column 2, 'negative 4'; Column 3, 'negative 3'; Column 4, 'negative 2'; Column 5, 'negative 1'; Column 6, '0' Row 2: Column 1, 'y'; Column 2, 'negative 8'; Column 3, 'negative 1'; Column 4, '0'; Column 5, '1'; Column 6, '8'
C
Table with 6 columns and 2 rows.Row 1: Column 1, 'x'; Column 2, 'negative 2'; Column 3, 'negative 1'; Column 4, '0'; Column 5, '1'; Column 6, '2' Row 2: Column 1, 'y'; Column 2, '10'; Column 3, '3'; Column 4, '2'; Column 5, '1'; Column 6, 'negative 6'
D
Table with 6 columns and 2 rows.Row 1: Column 1, 'x'; Column 2, 'negative 8'; Column 3, 'negative 1'; Column 4, '0'; Column 5, '1'; Column 6, '8' Row 2: Column 1, 'y'; Column 2, '4'; Column 3, '3'; Column 4, '2'; Column 5, '1'; Column 6, '0'
13

The graph of y is equal to square root of x is translated. The translation is defined by open paren x comma y close paren to open paren x minus 3 comma y plus 1 close paren Which is the graph of the translated image?

A
Image with description A coordinate plane with x and y axes ranges from negative 5 to 5 in increments of 1. A smooth curve originates from the point negative 1 comma negative 3, moves right and passes through the point 2 comma negative 2.
B
Image with description A coordinate plane with x and y axes ranges from negative 5 to 5 in increments of 1. A smooth curve originates from the point negative 3 comma 1, moves right and passes through the point 1 comma 3.
C
Image with description A coordinate plane with x and y axes ranges from negative 5 to 5 in increments of 1. A smooth curve originates from the point 3 comma negative 1, moves right and passes through the point 4 comma 0.
D
Image with description A coordinate plane with x and y axes ranges from negative 5 to 5 in increments of 1. A smooth curve originates from the point negative 1 comma negative 3, moves right and passes through the point 0 comma negative 2.
14

Which describes all possible values of f of x in the function f of x is equal to the fraction with numerator square root of x and denominator 2 ?

A
all real numbers except for 0
B
all positive real numbers and 0
C
all negative real numbers and 0
D
all real numbers
15

Which statement about square root of x minus square root of x minus 5 end root is equal to 1 is true?

A
x is equal to 4 is a true solution.
B
x is equal to 9 is a true solution.
C
x is equal to 4 is an extraneous solution.
D
x is equal to 9 is an extraneous solution.
16

What is the solution of square root of x minus 4 end root plus 5 is equal to 2 ?

A
x is equal to negative 17
B
x is equal to 13
C
x is equal to 53
D
no solution
17

Which inequality describes the range of f of x ?

A
y is greater than or equal to negative 3
B
y is greater than or equal to 0
C
y is greater than or equal to negative 5
D
y is greater than or equal to 3
18

Which statement is correct?

A
The domain of the graph is all real numbers.
B
The range of the graph is all real numbers greater than or equal to 0 .
C
The range and domain of the graph are the same.
D
The domain of the graph is all real numbers greater than or equal to 0 .

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