Question 1

Graph the piecewise defined function.
-$f ( x ) = \left\{ \begin{array} { l l } 
- x + 5 & \text { if } x < 0 \
2 x - 2 & \text { if } x \geq 0
\end{array} \right.$

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 2

Graph the function.
-$f(x)=|x-5|+7$

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 3

Fill in the blank with one of the words or phrases listed below. $$\begin{array} { l l l } 
\text { slope-intercept } & \text { directly } & \text { slope } \
\text { jointly } & \text { parallel } & \text { perpendicular } \
\text { function } & \text { inversely } & \text { linear function }
\end{array}$$
-In the equation $y = 4 x - 2$, the coefficient of $x$ is the______ of the corresponding graph.

Accepted Answer

A)  function 
B)  slope 
C)  slope-intercept 
D)  linear function

Question 4

Find an equation of the line. Write the equation using function notation.
-Through $( 3,2 )$; parallel to $9 x + 5 y = 17$

Accepted Answer

A)  $f ( x ) = - \frac { 9 } { 5 } x + \frac { 37 } { 5 }$ 
B)  $f ( x ) = - \frac { 5 } { 9 } x + 17$ 
C)  $f ( x ) = - \frac { 5 } { 9 } x + 2$ 
D)  $f ( x ) = \frac { 9 } { 5 } x + \frac { 37 } { 5 }$

Question 5

Graph the linear function.
-$f ( x ) = \frac { 1 } { 2 } x - 4$

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 6

Graph the function.
-$f(x)=-\sqrt{x}$

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 7

Graph the function.
-$f ( x ) = | x + 4 |$

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 8

Find the equation of the line. Write the equation using standard notation.
-Slope 2 ; through $( - 2,2 )$

Accepted Answer

A)  $2 x - y = 6$ 
B)  $x - 2 y = 6$ 
C)  $- 2 x + y = 6$ 
D)  $x + 2 y = - 6$

Question 9

Find the equation of the line. Write the equation using standard notation.
-Through $( 1,3 )$ and $( 0 , - 2 )$

Accepted Answer

A)  $2 x - y = - 5$ 
B)  $5 x + y = 2$ 
C)  $5 x + y = - 2$ 
D)  $5 x - y = 2$

Question 10

Graph the function.
-$g(x)=3 x^{2}$

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 11

Find the equation of the line. Write the equation using standard notation.
-Slope $- \frac { 9 } { 2 } ;$ through $( 2,0 )$

Accepted Answer

A)  $9 x + 2 y = 18$ 
B)  $- 2 x + 9 y = 18$ 
C)  $9 x - 2 y = 18$ 
D)  $2 x + 9 y = 18$

Question 12

Graph the piecewise defined function.
-$f ( x ) = \left\{ \begin{array} { l l } 
- 2 & \text { if } x < - 3 \
- 6 & \text { if } x \geq - 3
\end{array} \right.$

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 13

Fill in the blank with one of the words or phrases listed below. $$\begin{array} { l l l } 
\text { slope-intercept } & \text { directly } & \text { slope } \
\text { jointly } & \text { parallel } & \text { perpendicular } \
\text { function } & \text { inversely } & \text { linear function }
\end{array}$$
-Two lines are--------------- if the product of the slopes is -1.

Accepted Answer

A)  slope-intercept 
B)  perpendicular 
C)  parallel 
D)  jointly

Question 14

Find an equation of the line graphed. Write the equation using function notation.
-

Accepted Answer

A)  $f ( x ) = 2 x - 9$ 
B)  $f ( x ) = 2 x + 9$ 
C)  $f ( x ) = - 2 x - 9$ 
D)  $f ( x ) = - 2 x + 9$

Question 15

Find the equation of the line. Write the equation using standard notation.
-With slope $\frac { 3 } { 14 } ; y$-intercept $- \frac { 5 } { 7 }$

Accepted Answer

A)  $- 14 x - 3 y = 10$ 
B)  $- 14 x + 3 y = 10$ 
C)  $- 3 x - 14 y = 10$ 
D)  $3 x - 14 y = 10$

Question 16

Use the graph to determine the domain and range of the function.
-

Accepted Answer

A)  Domain: $( - \infty , - 2 ) \cup ( - 2 , \infty )$; range: $\{ - 8 , - 5 \}$ 
B)  Domain: $( - \infty , \infty )$; range: $( - 8 , - 5 )$ 
C)  Domain: $( - \infty , \infty )$; range: $\{ - 8 , - 5 \}$ 
D)  Domain: $( - \infty , - 2 ) \cup ( - 2 , \infty )$; range: $[ - 8 , - 5 ]$

Question 17

Write an equation to describe the variation. Use k for the constant of proportionality.
-$s$ varies directly as $t$ and inversely as $u$.

Accepted Answer

A)  $s = \frac { k t } { u }$ 
B)  $s = \frac { k u } { t }$ 
C)  $\mathrm { s } + \mathrm { t } - \mathrm { u } = \mathrm { k }$ 
D)  $s t u = k$

Question 18

Graph the function.
-$f(x)=x^{2}+3$

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 19

Graph the piecewise defined function.
-$f(x)=\left\{\begin{array}{ll}
x+2 & \text { if } x<1 \
7 x & \text { if } x \geq 1
\end{array}\right.$

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 20

Find an equation of the line. Write the equation using function notation.
-$( 8 , - 58 ) , ( - 5,33 )$

Accepted Answer

A)  $f ( x ) = - 7 x - 2$ 
B)  $f ( x ) = 7 x - 114$ 
C)  $f ( x ) = \frac { 1 } { 7 } x - \frac { 414 } { 7 }$ 
D)  $y = - \frac { 1 } { 7 } x - \frac { 398 } { 7 }$

Exam 8: More on Functions and Graphs

Graph the function. - $f(x) =|x-5|+7$

Find an equation of the line. Write the equation using function notation. -Through $( 3,2 )$ ; parallel to $9 x + 5 y = 17$

Graph the linear function. - $f ( x ) = \frac { 1 } { 2 } x - 4$ $Graph the linear function. - f ( x ) = \frac { 1 } { 2 } x - 4 A) B) C) D)$

Graph the function. - $f(x) =-\sqrt{x}$ $Graph the function. - f(x) =-\sqrt{x} A) B) C) D)$

Graph the function. - $f ( x ) = | x + 4 |$

Find the equation of the line. Write the equation using standard notation. -Slope 2 ; through $( - 2,2 )$

Find the equation of the line. Write the equation using standard notation. -Through $( 1,3 )$ and $( 0 , - 2 )$

Graph the function. - $g(x) =3 x^{2}$ $Graph the function. - g(x) =3 x^{2} A) B) C) D)$

Find the equation of the line. Write the equation using standard notation. -Slope $- \frac { 9 } { 2 } ;$ through $( 2,0 )$

Find an equation of the line graphed. Write the equation using function notation. -

Find the equation of the line. Write the equation using standard notation. -With slope $\frac { 3 } { 14 } ; y$ -intercept $- \frac { 5 } { 7 }$

Write an equation to describe the variation. Use k for the constant of proportionality. - $s$ varies directly as $t$ and inversely as $u$ .

Graph the function. - $f(x) =x^{2}+3$ $Graph the function. - f(x) =x^{2}+3 A) B) C) D)$

Graph the piecewise defined function. - $f(x) =\left\{\begin{array}{ll}x+2 & \text { if } x<1 \\7 x & \text { if } x \geq 1\end{array}\right.$ $Graph the piecewise defined function. - f(x) =\left\{\begin{array}{ll} x+2 & \text { if } x<1 \\ 7 x & \text { if } x \geq 1 \end{array}\right. A) B) C) D)$

Find an equation of the line. Write the equation using function notation. - $( 8 , - 58 ) , ( - 5,33 )$

Exam 8: More on Functions and Graphs

Graph the piecewise defined function. - f(x) ={−x+5 if x<02x−2 if x≥0f ( x ) = \left\{ \begin{array} { l l } - x + 5 & \text { if } x < 0 \\2 x - 2 & \text { if } x \geq 0\end{array} \right.f(x) ={−x+52x−2​ if x<0 if x≥0​

Graph the function. - f(x) =∣x−5∣+7f(x) =|x-5|+7f(x) =∣x−5∣+7

Find an equation of the line. Write the equation using function notation. -Through (3,2) ( 3,2 ) (3,2) ; parallel to 9x+5y=179 x + 5 y = 179x+5y=17

Graph the linear function. - f(x) =12x−4f ( x ) = \frac { 1 } { 2 } x - 4f(x) =21​x−4

Graph the function. - f(x) =−xf(x) =-\sqrt{x}f(x) =−x​

Graph the function. - f(x) =∣x+4∣f ( x ) = | x + 4 |f(x) =∣x+4∣

Find the equation of the line. Write the equation using standard notation. -Slope 2 ; through (−2,2) ( - 2,2 ) (−2,2)

Find the equation of the line. Write the equation using standard notation. -Through (1,3) ( 1,3 ) (1,3) and (0,−2) ( 0 , - 2 ) (0,−2)

Graph the function. - g(x) =3x2g(x) =3 x^{2}g(x) =3x2

Find the equation of the line. Write the equation using standard notation. -Slope −92;- \frac { 9 } { 2 } ;−29​; through (2,0) ( 2,0 ) (2,0)

Graph the piecewise defined function. - f(x) ={−2 if x<−3−6 if x≥−3f ( x ) = \left\{ \begin{array} { l l } - 2 & \text { if } x < - 3 \\- 6 & \text { if } x \geq - 3\end{array} \right.f(x) ={−2−6​ if x<−3 if x≥−3​

Find an equation of the line graphed. Write the equation using function notation. -

Find the equation of the line. Write the equation using standard notation. -With slope 314;y\frac { 3 } { 14 } ; y143​;y -intercept −57- \frac { 5 } { 7 }−75​

Use the graph to determine the domain and range of the function. -

Write an equation to describe the variation. Use k for the constant of proportionality. - sss varies directly as ttt and inversely as uuu .

Graph the function. - f(x) =x2+3f(x) =x^{2}+3f(x) =x2+3

Graph the piecewise defined function. - f(x) ={x+2 if x<17x if x≥1f(x) =\left\{\begin{array}{ll}x+2 & \text { if } x<1 \\7 x & \text { if } x \geq 1\end{array}\right.f(x) ={x+27x​ if x<1 if x≥1​

Find an equation of the line. Write the equation using function notation. - (8,−58) ,(−5,33) ( 8 , - 58 ) , ( - 5,33 ) (8,−58) ,(−5,33)

Graph the function. - $f(x) =|x-5|+7$

Find an equation of the line. Write the equation using function notation. -Through $( 3,2 )$ ; parallel to $9 x + 5 y = 17$

Graph the linear function. - $f ( x ) = \frac { 1 } { 2 } x - 4$ $Graph the linear function. - f ( x ) = \frac { 1 } { 2 } x - 4 A) B) C) D)$

Graph the function. - $f(x) =-\sqrt{x}$ $Graph the function. - f(x) =-\sqrt{x} A) B) C) D)$

Graph the function. - $f ( x ) = | x + 4 |$

Find the equation of the line. Write the equation using standard notation. -Slope 2 ; through $( - 2,2 )$

Find the equation of the line. Write the equation using standard notation. -Through $( 1,3 )$ and $( 0 , - 2 )$

Graph the function. - $g(x) =3 x^{2}$ $Graph the function. - g(x) =3 x^{2} A) B) C) D)$

Find the equation of the line. Write the equation using standard notation. -Slope $- \frac { 9 } { 2 } ;$ through $( 2,0 )$

Find the equation of the line. Write the equation using standard notation. -With slope $\frac { 3 } { 14 } ; y$ -intercept $- \frac { 5 } { 7 }$

Write an equation to describe the variation. Use k for the constant of proportionality. - $s$ varies directly as $t$ and inversely as $u$ .

Graph the function. - $f(x) =x^{2}+3$ $Graph the function. - f(x) =x^{2}+3 A) B) C) D)$

Find an equation of the line. Write the equation using function notation. - $( 8 , - 58 ) , ( - 5,33 )$