Question

Which of the following linear equations passes through points (-1,5) and (1,-5)?

Y=-5x
Y=5x+10
Y=-2x+3

Answer 1

y = -5x

Explanation:

gradient = delta y / delta x

gradient = -10 / 2

gradient = -5

y = mx + b

5 = -5(-1) + b

5 = 5 + b

b = 0

y = -5x