Consider y=7. Which of the following is parallel to it? A. y=-1/7 B. y=8 C. x=6 D. y=1/7x-4

Answer 1

The slope of a horizontal line is 0. It only has a y-intercept.

y = mx + b

y = b, is a horizontal line (it only has a y-intercept "b")

In this case:

y = 7 is horizontal

y = 8 is horizontal

y = -1/7 is horizontal

All horizontal lines are parallel, so y = 8 and y = -1/7 are parallel to y = 7

Answer 2

A & B both work; C & D do not.