Which pair of equations represents parallel lines a. y=2x+7 y=2x-7 b. y=2x-7 y=-1/2-7 c. y=2x+7 y=x+7 d. y=7 x=7

y = 2x + 7 and y = 2x - 7 → A

Note that parallel lines have equal slopes

the equation of a line in ' slope- intercept form ' is

y = mx + c → (m is the slope and c the y-intercept)

y = 2x + 7 has m = 2 and y = 2x - 7 has m = 2

The only pair of lines with equal slopes is A

(-1,0) and (4,0) are x-intercepts.

step-by-step explanation:

x-intercepts are all points on the x-axis.

points (-1,0) and (4,0) are both x -intercepts.