Practice Test

Question 1

Which system of equations can be graphed to find the solution(s) to 4 x squared is equal to x squared plus 7 ?

Revolt · Accepted Answer

C: y is equal to 4 x squared

y is equal to x squared plus 7

Question 2

Which statement best describes how to determine whether f of x is equal to x squared minus x plus 8 is an even function?

Revolt · Accepted Answer

B: Determine whether  negative x squared minus negative x plus 8  is equivalent to  x squared minus x plus 8 .

Question 3

Which graph represents an even function?

Revolt · Accepted Answer

A: Image with description On a coordinate plane, the x and y axes range from negative 6 to 6 in increments of 1. The graph has 7 points. The points are (negative 4 comma negative 3), (negative 3 comma negative 5), (negative 2 comma 1), (0 comma 0), (2 comma 1), (3 comma negative 5), and (4 comma negative 3).

Question 4

The height in feet, h , of a model rocket t seconds after launch is given by the equation h of t is equal to 3 plus 70 t minus 16 t squared The average rate of change in h of t between t is equal to 1 second and t is equal to 3 second is 6 What does the average rate of change tell you about the rocket?

Revolt · Accepted Answer

A: The rocket is traveling at a constant rate of  6  feet per second between  t is equal to 1  and  t is equal to 3 .

Question 5

Which relation represents a one-to-one function?

Revolt · Accepted Answer

D: Table with 2 columns and 6 rows.Row 1: Column 1, 'x'; Column 2, 'f of x' Row 2: Column 1, '9'; Column 2, '12' Row 3: Column 1, '2'; Column 2, '7' Row 4: Column 1, '4'; Column 2, '9' Row 5: Column 1, '1'; Column 2, '13' Row 6: Column 1, '5'; Column 2, '5'

Question 6

If f of x is equal to x squared minus 25 and g of x is equal to x minus 5 , what is the domain of open paren f over g close paren of x ?

Revolt · Accepted Answer

A: all real values of  x  except  x is equal to 5  and  x is equal to negative 5; B: all real values of  x

Question 7

What is the domain of the relation graphed?

Revolt · Accepted Answer

C: 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

Question 8

What is the value of open paren f minus g close paren of 5 ?

Revolt · Accepted Answer

B: 16

Question 9

The graph shows the distance in miles of a runner over x hours. What is the average rate of speed over the interval left bracket 9 comma 11 right bracket ?

Revolt · Accepted Answer

A: 5 halves

Question 10

Carlos graphs the equations y is equal to negative 1 half x squared plus 4 and y is equal to negative 1 half x squared minus 2 x plus 2 and generates the graph. Which conclusion is supported by the graph?

Revolt · Accepted Answer

B: The equation  negative 1 half x squared plus 4 is equal to negative 1 half x squared minus 2 x plus 2  has one real solution.

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