Question

What is the equation of this line?

Answer 1

Find the gradient of the line using any two points on the line as 
let point A(2,-2) point B(-2,-4)
using$m= \frac{ y_{2} - y_{1} }{ x_{2} - x_{1} }$
as the y-intercept is -3

Answer 2

(0, -3)(2, -2)
slope = (-2 + 3)/(2-0) = 1/2

b = -3
equation
y = 1/2x - 3

answer is A
y = 1/2x - 3