Math A

Practice with Equations of Lines

 

Answer the following questions dealing with equations and graphs of straight lines.

 

1.

Which of the following equations passes through the points (2,1) and (5,-2)? 

Choose:

y = (3/7)x + 5
y = -x + 3
 y = -x+2
y = (-1/3)x + 3 

 

 

2.

Does the graph of the straight line with slope of -2 and y-intercept of -3 pass through the point (5,-13)?

Choose:

Yes
No

 

 

 

3.

 

 

 

The slope of this line is 3/2.

Choose:

True
False

 

 

 

4.

 What is the slope of the line 3x + 2y = 12?

Choose:

3
3/2
-3/2
2

 

 

5.

Which is the correct slope of the line through (-2,3) and (4,-5)?

Choose:

-4/3
-3/4
4/3
-1/3

 

 

6.

 

x 1 3 5 7
y 2 5 8 11

What is the slope of the line shown in the chart above?

Choose:

1
3/2
3
3/5

 

 

7.

 Does the line 2y + x = 7 pass through the point (1,3)?


Choose:

True
False

 

 

8.

 Which is the equation of a line whose slope is undefined?

Choose:

x = -5
y = 7
x = y
x + y = 0

 

 

9.

 Which is the equation of a line that passes through the point (2,5) and has a slope of -3?

Choose:

y = -3x - 3
y = -3x + 17
y = -3x + 11
y = -3x + 5

 

 

10.

 Which of these equations represents a line parallel to the line 2x + y = 6?

Choose:

y = 2x + 3
y - 2x = 4
2x - y = 8
y = -2x + 1

 

 

 

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Roberts