Question 1

Is the following correspondence a function?
-

Accepted Answer

A) True 
 B)False

Question 2

Find the slope of the line.
-

Accepted Answer

A)  $\frac { 1 } { 3 }$ 
B)  $- 3$ 
C)  3 
D)  $- \frac { 1 } { 3 }$ 
A)  $\frac { 1 } { 3 }$ 
B)  $- 3$ 
C)  3 
D)  $- \frac { 1 } { 3 }$

Question 3

Write an equation of the line described.
-Through $( - 4,9 )$, perpendicular to $5 x + 3 y = - 47$

Accepted Answer

A)  $y = - \frac { 3 } { 5 } x + \frac { 57 } { 5 }$ 
B)  $y = \frac { 5 } { 3 } x + \frac { 5 } { 3 }$ 
C)  $y = - \frac { 4 } { 3 } x + \frac { 47 } { 3 }$ 
D)  $y = \frac { 3 } { 5 } x + \frac { 57 } { 5 }$ 
A)  $y = - \frac { 3 } { 5 } x + \frac { 57 } { 5 }$ 
B)  $y = \frac { 5 } { 3 } x + \frac { 5 } { 3 }$ 
C)  $y = - \frac { 4 } { 3 } x + \frac { 47 } { 3 }$ 
D)  $y = \frac { 3 } { 5 } x + \frac { 57 } { 5 }$

Question 4

Find the function value.
-f(1)

Accepted Answer

A)  0 
B)  $- 4$ 
C)  $- 2$ 
D)  - 1 
A)  0 
B)  $- 4$ 
C)  $- 2$ 
D)  - 1

Question 5

Graph using the slope and the y-intercept.
-8 · f(x)= 12x - 28

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D)

Question 6

Find the slope of the line.
-

Accepted Answer

A) 2 
B) 1 
C) -2 
D) -1 
A) 2 
B) 1 
C) -2 
D) -1

Question 7

Find the function value.
-Find $f ( 2 a )$ when $f ( x ) = 8 x ^ { 2 } + 7 x$.

Accepted Answer

A)  $8 a ^ { 2 } + 14 a$ 
B)  $32 a ^ { 2 } + 7 a$ 
C)  $16 a ^ { 2 } + 14 a$ 
D)  $32 a ^ { 2 } + 14 a$ 
A)  $8 a ^ { 2 } + 14 a$ 
B)  $32 a ^ { 2 } + 7 a$ 
C)  $16 a ^ { 2 } + 14 a$ 
D)  $32 a ^ { 2 } + 14 a$

Question 8

Find a linear function whose graph has the given slope and y-intercept.
-Slope $- \frac { 4 } { 7 } , \mathrm { y }$-intercept 2

Accepted Answer

A)  $f ( x ) = - \frac { 4 } { 7 } x + 2$ 
B)  $f ( x ) = - \frac { 4 } { 7 } x - 2$ 
C)  $f ( x ) = \frac { 4 } { 7 } x + 2$ 
D)  $f ( x ) = \frac { 4 } { 7 } x - 2$ 
A)  $f ( x ) = - \frac { 4 } { 7 } x + 2$ 
B)  $f ( x ) = - \frac { 4 } { 7 } x - 2$ 
C)  $f ( x ) = \frac { 4 } { 7 } x + 2$ 
D)  $f ( x ) = \frac { 4 } { 7 } x - 2$

Question 9

For the function represented in the graph, determine the domain or range, as requested.
-Find the range.

Accepted Answer

A)  $\{ x \mid - 5 \leq x \leq 5 \}$ 
B)  $\{ x \mid - 5 \leq x \leq 3 \}$ 
C)  $\{ - 3 , - 2 , - 1,0,1,2,3,4,5 \}$ 
D)  $\{ x \mid - 3 \leq x \leq 5 \}$ 
A)  $\{ x \mid - 5 \leq x \leq 5 \}$ 
B)  $\{ x \mid - 5 \leq x \leq 3 \}$ 
C)  $\{ - 3 , - 2 , - 1,0,1,2,3,4,5 \}$ 
D)  $\{ x \mid - 3 \leq x \leq 5 \}$

Question 10

Determine the slope and the y-intercept.
-y = 8x + 9

Accepted Answer

A) Slope 9, y-intercept (0, -8) 
B) Slope -8, y-intercept (0, 9) 
C) Slope 8, y-intercept (0, 9) 
D) Slope 9, y-intercept (0, 8) 
A) Slope 9, y-intercept (0, -8) 
B) Slope -8, y-intercept (0, 9) 
C) Slope 8, y-intercept (0, 9) 
D) Slope 9, y-intercept (0, 8)

Question 11

Find the intercepts and then graph the line.
--4x - 12y = 24

Accepted Answer

A)  $( 0 , - 2 ) ; ( 6,0 )$
  
B)  $( 0,2 ) ; ( - 6,0 )$
  
C)  $( 0,2 ) ; ( 6,0 )$
  
D)  $( 0 , - 2 ) ; ( - 6,0 )$
  
A)  $( 0 , - 2 ) ; ( 6,0 )$
  
B)  $( 0,2 ) ; ( - 6,0 )$
  
C)  $( 0,2 ) ; ( 6,0 )$
  
D)  $( 0 , - 2 ) ; ( - 6,0 )$

Question 12

Graph using the slope and the y-intercept.
-$$- 2 x + 8 \cdot f ( x ) = - 14$$

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D)

Question 13

Find the function value.
-Find $f ( 7 )$ when $f ( x ) = x ^ { 3 }$.

Accepted Answer

A)  216 
B)  343 
C)  2187 
D)  21 
A)  216 
B)  343 
C)  2187 
D)  21

Question 14

Find the function value.
-Find $f ( 3 )$ when $f ( x ) = | x - 5 |$.

Accepted Answer

A)  $- 2$ 
B)  5 
C)  3 
D)  2 
A)  $- 2$ 
B)  5 
C)  3 
D)  2

Question 15

Solve the problem.
-In 1995 the United States recovered 22% of its municipal wastes through recycling, up from 17% in 1990. Let P represent the percentage recycled and t the number of years since 1990. Find a linear function P(t)that fits this
Data. Use this function to predict the percentage recycled in 2002.

Accepted Answer

A) 30.7% 
B) 25.4% 
C) 29% 
D) 27.1% 
A) 30.7% 
B) 25.4% 
C) 29% 
D) 27.1%

Question 16

Is the following correspondence a function?
-

Accepted Answer

A) True 
 B)False

Question 17

Find the function value.
-Find f(3)when f(x)= -x + 5.

Accepted Answer

A) 2 
B) 6 
C) 3 
D) -2 
A) 2 
B) 6 
C) 3 
D) -2

Question 18

Find the intercepts and then graph the line.
-3x - 12y = 0

Accepted Answer

A)  $( 0,0 ) ; ( 0,0 )$
  
B)  $( 0,0 ) ; ( 0,0 )$
  
C)  $( 0,0 ) ; ( 0,0 )$
  
D)  $( 0,0 ) ; ( 0,0 )$
  
A)  $( 0,0 ) ; ( 0,0 )$
  
B)  $( 0,0 ) ; ( 0,0 )$
  
C)  $( 0,0 ) ; ( 0,0 )$
  
D)  $( 0,0 ) ; ( 0,0 )$

Question 19

A function f is depicted in the graph. Find any input values that produce the indicated output.
-f(x)= 3

Accepted Answer

A) 0, 4 
B) 3, 1 
C) 3 
D) 1 
A) 0, 4 
B) 3, 1 
C) 3 
D) 1

Question 20

Find an equation of the line having the specified slope and containing the indicated point. Write your answer in
slope-intercept form.
-m = -5; (-9, 6)

Accepted Answer

A) y = 5x - 41 
B) y = -5x - 47 
C) y = -5x - 40 
D) y = -5x - 39 
A) y = 5x - 41 
B) y = -5x - 47 
C) y = -5x - 40 
D) y = -5x - 39

Is the following correspondence a function? -

Find the slope of the line. -

Write an equation of the line described. -Through $( - 4,9 )$ , perpendicular to $5 x + 3 y = - 47$

Find the function value. -f(1)

Graph using the slope and the y-intercept. -8 · f(x)= 12x - 28

Find the slope of the line. -

Find the function value. -Find $f ( 2 a )$ when $f ( x ) = 8 x ^ { 2 } + 7 x$ .

Find a linear function whose graph has the given slope and y-intercept. -Slope $- \frac { 4 } { 7 } , \mathrm { y }$ -intercept 2

For the function represented in the graph, determine the domain or range, as requested. -Find the range.

Determine the slope and the y-intercept. -y = 8x + 9

Find the intercepts and then graph the line. --4x - 12y = 24

Graph using the slope and the y-intercept. - $- 2 x + 8 \cdot f ( x ) = - 14$ $Graph using the slope and the y-intercept. - - 2 x + 8 \cdot f ( x ) = - 14$

Find the function value. -Find $f ( 7 )$ when $f ( x ) = x ^ { 3 }$ .

Find the function value. -Find $f ( 3 )$ when $f ( x ) = | x - 5 |$ .

Is the following correspondence a function? -

Find the function value. -Find f(3)when f(x)= -x + 5.

Find the intercepts and then graph the line. -3x - 12y = 0

A function f is depicted in the graph. Find any input values that produce the indicated output. -f(x)= 3

Find an equation of the line having the specified slope and containing the indicated point. Write your answer in slope-intercept form. -m = -5; (-9, 6)

Introduction to Real Numbers and Algebraic Expressions

Solving Equations and Inequalities

Graphs of Linear Equations

Polynomials: Operations

Polynomials: Factoring

Rational Expressions and Equations

Systems of Equations

More on Inequalities

Radical Expressions, Equations, and Functions

Quadratic Equations and Functions

Exponential Functions and Logarithmic Functions

Filters

Exam 7: Graphs, Functions, and Applications

Is the following correspondence a function? -

Find the slope of the line. -

Write an equation of the line described. -Through (−4,9)( - 4,9 )(−4,9) , perpendicular to 5x+3y=−475 x + 3 y = - 475x+3y=−47

Find the function value. -f(1)

Graph using the slope and the y-intercept. -8 · f(x)= 12x - 28

Find the slope of the line. -

Find the function value. -Find f(2a)f ( 2 a )f(2a) when f(x)=8x2+7xf ( x ) = 8 x ^ { 2 } + 7 xf(x)=8x2+7x .

Find a linear function whose graph has the given slope and y-intercept. -Slope −47,y- \frac { 4 } { 7 } , \mathrm { y }−74​,y -intercept 2

For the function represented in the graph, determine the domain or range, as requested. -Find the range.

Determine the slope and the y-intercept. -y = 8x + 9

Find the intercepts and then graph the line. --4x - 12y = 24

Graph using the slope and the y-intercept. - −2x+8⋅f(x)=−14- 2 x + 8 \cdot f ( x ) = - 14−2x+8⋅f(x)=−14

Find the function value. -Find f(7)f ( 7 )f(7) when f(x)=x3f ( x ) = x ^ { 3 }f(x)=x3 .

Find the function value. -Find f(3)f ( 3 )f(3) when f(x)=∣x−5∣f ( x ) = | x - 5 |f(x)=∣x−5∣ .

Is the following correspondence a function? -

Find the function value. -Find f(3)when f(x)= -x + 5.

Find the intercepts and then graph the line. -3x - 12y = 0

A function f is depicted in the graph. Find any input values that produce the indicated output. -f(x)= 3

Find an equation of the line having the specified slope and containing the indicated point. Write your answer in slope-intercept form. -m = -5; (-9, 6)

Introduction to Real Numbers and Algebraic Expressions

Solving Equations and Inequalities

Graphs of Linear Equations

Polynomials: Operations

Polynomials: Factoring

Rational Expressions and Equations

Systems of Equations

More on Inequalities

Radical Expressions, Equations, and Functions

Quadratic Equations and Functions

Exponential Functions and Logarithmic Functions

Filters

Write an equation of the line described. -Through $( - 4,9 )$ , perpendicular to $5 x + 3 y = - 47$

Find the function value. -Find $f ( 2 a )$ when $f ( x ) = 8 x ^ { 2 } + 7 x$ .

Find a linear function whose graph has the given slope and y-intercept. -Slope $- \frac { 4 } { 7 } , \mathrm { y }$ -intercept 2

Graph using the slope and the y-intercept. - $- 2 x + 8 \cdot f ( x ) = - 14$ $Graph using the slope and the y-intercept. - - 2 x + 8 \cdot f ( x ) = - 14$

Find the function value. -Find $f ( 7 )$ when $f ( x ) = x ^ { 3 }$ .

Find the function value. -Find $f ( 3 )$ when $f ( x ) = | x - 5 |$ .