Question

Which equation represents the line that is parallel to y=4 and passes through (-3,1).

A. x=1
B. x= 3
C. y= 1
D. y= 4x + 13

Answer 1

y = 1

Explanation:

Just took the practice test and got it right

Answer 2

C. y = 1

Explanation:

For two line to be parallel, they have to have the same slope. The slope for the equation y = 4 is 0. This cancels out answer choices A, B, and D.

A and B have an undefined slope since they are vertical lines.

D has a slope of 4.

Also, the line has to go through the point (-3, 1). Since the line has a slope of 0, the equation will include the y-value. The y-value for this point is 1. This gives you an answer of y = 1.