Answer :
Find slope: (y2-y1)/(x2-x1)
(-4-5)/(-1-2) = -9/-3 = 3
Y = 3x + b
5 = 3(2) + b, b = -1
Equation: y = 3x - 1
(-4-5)/(-1-2) = -9/-3 = 3
Y = 3x + b
5 = 3(2) + b, b = -1
Equation: y = 3x - 1