Question

Which graph BEST represents the solution to the system of equations below?

y = 4 - x
y = 3x – 37 = 7

Answer 1

C

Explanation:

y = -x+ 4

y = 3x- 42

= x - 14

slopes of both lines are -1 and 1 which means lines are perpendicular.

Option C represents the perpendicular lines.