Answer:
y = 3x -5
Step-by-step explanation:
y = mx +b
m = 3
b = y - 3x = -2 - (3 x1) = -5
y = 3x - 5
m = 3 ; (1,-2)
y-y₁ = m(x-x₁)
y - [-2] = 3 (x - 1)
y + 2 = 3x - 3
y = 3x- 3 - 2
