Review the following concepts if needed:
The Slope and Equation of a Line Practice Test
Problems

Find the slope of the line containing the points (3, 1) and (4, −2).
(a)
(b) −3
(c)
(d) 3

Are the lines 2 x + y = 4 and 2 x − 4 y = 5 parallel, perpendicular, or neither?
(a) Parallel
(b) Perpendicular
(c) Neither
(d) Cannot be determined

Are the lines x = 4 and y = −4 parallel, perpendicular, or neither?
(a) Parallel
(b) Perpendicular
(c) Neither
(d) Cannot be determined

What is the equation of the line containing the points (0, −1) and (5, 1)?
(a) y = −1
(b)
(c) y = −4 x − 1
(d)

Find an equation of the line containing the point (−1, −5) and parallel to the line y = 2 x − 4.
(a) y = 2 x − 3
(b) y = 2 x − 5
(c) y = 2 x − 1
(d) y = 2 x + 4

Find an equation of the line containing the point (3, 3) and perpendicular to the line y = 2 x + 5.

Find an equation of the line in Figure 1.18.
(a)
(b)
(c) y = −2 x + 4
(d) y = 2 x + 4

Find an equation of the horizontal line that goes through the point (4, 9).
(a) x = 4
(b) y = 9
(c) Cannot be determined

Are the points (−5, −1), (1,4), and (6, −2) the vertices of a right triangle?
(a) Yes
(b) No
(c) Cannot be determined

A government agency leases a photocopier for a fixed monthly charge plus a charge for each photocopy. In one month, the bill was $350 for 4000 copies. In the following month, the bill was $375 for 5000 copies. Find the monthly bill in terms of the number of copies used,
(a) y = 1.267 x − 4718
(b) y = 40 x − 10,000
(c) y = 0.789 x − 3570
(d) y = 0.025 x + 250
Solutions

B

B

B

D

A

A

B

B

A

D
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