Question 1

Determine whether the relation is also a function.
-$\{ ( - 8 , - 9 ) , ( - 8 , - 3 ) , ( - 1 , - 3 ) , ( 6 , - 8 ) , ( 9 , - 5 ) \}$

Accepted Answer

A) True 
 B)False

Question 2

Solve. Assume the exercise describes a linear relationship.
-Marty's Tee Shirt \& Jacket Company is to produce a new line of jackets with a embroidery of a Great Pyrenees dog on the front. There are fixed costs of $\$ 620$ to set up for production, and variable costs of $\$ 47$ per jacket. Write an equation that can be used to determine the total cost encountered by Marty's Company in producing $x$ jackets. Use the equation to find the total cost of producing 94 jackets.

Accepted Answer

A)  $\$ 5050$ 
B)  $\$ 5018$ 
C)  $\$ 5030$ 
D)  $\$ 5038$

Question 3

Solve.
-To the nearest dollar, the average tuition at a public four-year college was $\$ 3024$ in 1997 and $\$ 3216$ in 1998. Use the ordered pairs $( 1997 , \$ 3024 )$ and $( 1998 , \$ 3216 )$ to find and interpret the slope of the line representing the change in tuition (to the nearest dollar per year).

Accepted Answer

A)  tuition increased $\$ 192$ per year 
B)  tuition decreased $\$ 192$ per year 
C)  tuition increased $\$ 203$ per year 
D)  tuition increased $\$ 209$ per year

Question 4

Decide whether the equation describes a function.
-$x = - 7$

Accepted Answer

A) True 
 B)False

Question 5

Decide whether the equation describes a function.
-$y = x + 8$

Accepted Answer

A) True 
 B)False

Question 6

Determine whether the relation is also a function.
-$\{ ( - 6,2 ) , ( - 1 , - 4 ) , ( 4,9 ) , ( 4,6 ) \}$

Accepted Answer

A) True 
 B)False

Question 7

Find an equation of the line.
-Vertical line through $\left( 0 , - \frac { 2 } { 5 } \right)$

Accepted Answer

A)  $y = 0$ 
B)  $x = - \frac { 2 } { 5 }$ 
C)  $y = - \frac { 2 } { 5 } x$ 
D)  $x = 0$

Question 8

Find an equation of the line described.
-Through $( 6 , - 7 )$, perpendicular to the $y$-axis

Accepted Answer

A)  $6 x - 7 y = 0$ 
B)  $x = 6$ 
C)  $6 x + y = - 7$ 
D)  $y = - 7$

Question 9

Find an equation of the line described.
-With undefined slope, through $\left( - \frac { 2 } { 5 } , 8 \right)$

Accepted Answer

A)  $x = - \frac { 2 } { 5 }$ 
B)  $y = 8$ 
C)  $- \frac { 2 } { 5 } x + y = 8$ 
D)  $- \frac { 2 } { 5 } x + 8 y = 0$

Question 10

Graph the linear equation.
-$y = 4$

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 11

Solve.
-The approach ramp used by a daredevil motorcyclist for flying over a collection of flaming barrels of oil has a rise of 13 feet for every 20 feet in horizontal distance. Find the grade of the ramp. Round to the nearest whole percent.

Accepted Answer

A)  $15 \%$ 
B)  $65 \%$ 
C)  $70 \%$ 
D)  $0.65 \%$

Question 12

Find the slopes of the lines that are (a) parallel to and (b) perpendicular to the line passing through the pair of points.
-$( 3,3 )$ and $( - 4 , - 4 )$

Accepted Answer

A)  (a) $- 1$; (b) 1 
B)  $( \mathrm { a } ) - \frac { 3 } { 4 }$;
b. $\frac { 4 } { 3 }$ 
C)  (a) 1 ; (b) $- 1$ 
D)  (a) 0 ; (b) 0

Question 13

Write the word or phrase that best completes each statement or answers the question.Solve.
-The table gives the number of cans of soda sold at a campus stand on five days with different high temperatures for the day. Write this data as a set of ordered pairs of the form (temperature, cans). Then create a scatter diagram of the data.

Accepted Answer

The answer of Write the word or phrase that best...

Exam 3: Graphing

Determine whether the relation is also a function. - $\{ ( - 8 , - 9 ) , ( - 8 , - 3 ) , ( - 1 , - 3 ) , ( 6 , - 8 ) , ( 9 , - 5 ) \}$

Decide whether the equation describes a function. - $x = - 7$

Decide whether the equation describes a function. - $y = x + 8$

Determine whether the relation is also a function. - $\{ ( - 6,2 ) , ( - 1 , - 4 ) , ( 4,9 ) , ( 4,6 ) \}$

Find an equation of the line. -Vertical line through $\left( 0 , - \frac { 2 } { 5 } \right)$

Find an equation of the line described. -Through $( 6 , - 7 )$ , perpendicular to the $y$ -axis

Find an equation of the line described. -With undefined slope, through $\left( - \frac { 2 } { 5 } , 8 \right)$

Graph the linear equation. - $y = 4$

Solve. -The approach ramp used by a daredevil motorcyclist for flying over a collection of flaming barrels of oil has a rise of 13 feet for every 20 feet in horizontal distance. Find the grade of the ramp. Round to the nearest whole percent.

Find the slopes of the lines that are (a) parallel to and (b) perpendicular to the line passing through the pair of points. - $( 3,3 )$ and $( - 4 , - 4 )$

Exam 3: Graphing

Determine whether the relation is also a function. - {(−8,−9),(−8,−3),(−1,−3),(6,−8),(9,−5)}\{ ( - 8 , - 9 ) , ( - 8 , - 3 ) , ( - 1 , - 3 ) , ( 6 , - 8 ) , ( 9 , - 5 ) \}{(−8,−9),(−8,−3),(−1,−3),(6,−8),(9,−5)}

Decide whether the equation describes a function. - x=−7x = - 7x=−7

Decide whether the equation describes a function. - y=x+8y = x + 8y=x+8

Determine whether the relation is also a function. - {(−6,2),(−1,−4),(4,9),(4,6)}\{ ( - 6,2 ) , ( - 1 , - 4 ) , ( 4,9 ) , ( 4,6 ) \}{(−6,2),(−1,−4),(4,9),(4,6)}

Find an equation of the line. -Vertical line through (0,−25) \left( 0 , - \frac { 2 } { 5 } \right) (0,−52​)

Find an equation of the line described. -Through (6,−7) ( 6 , - 7 ) (6,−7) , perpendicular to the yyy -axis

Find an equation of the line described. -With undefined slope, through (−25,8) \left( - \frac { 2 } { 5 } , 8 \right) (−52​,8)

Graph the linear equation. - y=4y = 4y=4

Solve. -The approach ramp used by a daredevil motorcyclist for flying over a collection of flaming barrels of oil has a rise of 13 feet for every 20 feet in horizontal distance. Find the grade of the ramp. Round to the nearest whole percent.

Find the slopes of the lines that are (a) parallel to and (b) perpendicular to the line passing through the pair of points. - (3,3) ( 3,3 ) (3,3) and (−4,−4) ( - 4 , - 4 ) (−4,−4)

Determine whether the relation is also a function. - $\{ ( - 8 , - 9 ) , ( - 8 , - 3 ) , ( - 1 , - 3 ) , ( 6 , - 8 ) , ( 9 , - 5 ) \}$

Decide whether the equation describes a function. - $x = - 7$

Decide whether the equation describes a function. - $y = x + 8$

Determine whether the relation is also a function. - $\{ ( - 6,2 ) , ( - 1 , - 4 ) , ( 4,9 ) , ( 4,6 ) \}$

Find an equation of the line. -Vertical line through $\left( 0 , - \frac { 2 } { 5 } \right)$

Find an equation of the line described. -Through $( 6 , - 7 )$ , perpendicular to the $y$ -axis

Find an equation of the line described. -With undefined slope, through $\left( - \frac { 2 } { 5 } , 8 \right)$

Graph the linear equation. - $y = 4$

Find the slopes of the lines that are (a) parallel to and (b) perpendicular to the line passing through the pair of points. - $( 3,3 )$ and $( - 4 , - 4 )$