

1. 
Which equation is graphed below? 





A. 

B. 



C. 

D. 



Hint 


2. 
Which expression is used to find the slope of a line? 


A. 
m = 


B. 
m = 


C. 
m = 


D. 
m = 


Hint 


3. 
Find the slope of the line graphed below. 





A. 
4 
B. 
4 


C. 

D. 



Hint 


4. 
Which ordered pair is a solution of y < 4x  5? 


A. 
(0, 6) 
B. 
(2, 3) 


C. 
(1, 3) 
D. 
(7, 0) 


Hint 


5. 
Determine whether the relation {(7, 2), (10, 3), (5, 1), (7, 3)} is a function. Explain. 


A. 
No, because there is an element in the domain that is paired with two elements in the range. 


B. 
Yes, because every relation is a function. 


C. 
No, because there are two elements in the domain that are paired with the same element in the range. 


D. 
Yes, because each element in the domain is paired with exactly one element in the range. 


Hint 


6. 
Select the relation that is a function. 


A. 
{(2, 1),(5, 1), (16, 3), (3, 9)} 


B. 
{(5, 10), (3, 10), (3, 10), (4, 7)} 


C. 
{(6, 5), (3, 2), (10, 8), (3, 3)} 


D. 
{(21, 11), (21, 10), (21, 9), (21, 8)} 


Hint 


7. 
Find four solutions for y = 3x – 1 if the x values are 0, 1, 2, 3. 


A. 
(0, 0), (1, 3), (2, 6), (3, 9) 


B. 
(0, 1), (1, 4), (2, 7), (3, 10) 


C. 
(1, 0), (2, 1), (5, 2), (8, 3) 


D. 
(0, 1), (1, 2), (2, 5), (3, 8) 


Hint 


8. 
Graph 2x – 8y = 16. 


A. 

B. 



C. 

D. 



Hint 


9. 
Find the x intercept of 4x – 6y = 24. 


A. 
6 
B. 
4 


C. 
4 
D. 
6 


Hint 


10. 
Suppose y varies directly with x and y = 10 when x = 5. Write an equation relating x and y. 


A. 

B. 



C. 
y = 2x 
D. 
y = 2x 


Hint 


11. 
The direct variation equation y = 0.1x gives the price y for x minutes of a long distance calling plan. Use the equation to find the cost for a phone call that is 32.5 minutes long. 


A. 
$3.28 
B. 
$3.30 


C. 
$3.20 
D. 
$3.25 


Hint 


12. 
Which of the following is the equation for the given graph? 





A. 

B. 



C. 

D. 



Hint 


13. 
State the slope of the graph of 6x + 3y = 10. 


A. 
2 
B. 



C. 
2 
D. 



Hint 


14. 
Write an equation in slopeintercept form of a line with slope 5 and y intercept –7. 


A. 
x = 5y + 7 
B. 
x = 5y – 7 


C. 
y = 5x – 7 
D. 
y = 5x + 7 


Hint 


15. 
Write an equation in slopeintercept form of a line with slope 0 and y intercept 6. 


A. 
y = 6 
B. 
x = 6y 


C. 
y = 6x 
D. 
x = 6 


Hint 


16. 
Write an equation in slopeintercept form for the bestfit line of a scatter plot with points (21, 57) and (30, 12). 


A. 

B. 
y = 5x + 162 


C. 

D. 
y = 5x – 48 


Hint 


17. 
A bestfit line has the equation which models the number of hours y of a trip that is x miles long. Predict the time of a 200mile trip. 


A. 
about 3.8 hours 
B. 
about 2.3 hours 


C. 
about 4.6 hours 
D. 
about 3.1 hours 


Hint 


18. 
Solve the system of equations given by 3y = 6x + 3 and y = 2x + 1. 


A. 
(0, 1) 
B. 
infinitely many solutions 


C. 
(2, 3) 
D. 
no solution 


Hint 


19. 
Solve the system of equations given byy = 2x – 7 and y = 5. 


A. 
(1, 5) 
B. 
(5, 3) 


C. 
(6, 5) 
D. 
(3, 5) 


Hint 


20. 
Match the graph shown with the correct inequality. 





A. 

B. 



C. 

D. 
y < 4x – 6 


Hint 


