M = slope
If slope = -3/4, M = -3/4
y = mx + b ---> y = -3/4x + b
Now substitute the point (-5,4) to find b, and therefore the rest of the equation.
y = -3/4x + b
4 = -3/4(-5) + b
4 = 15/4 + b
0.25 = b
Therefore the answer is A, Y = -3/4x + 1/4
I'm not sure so :/