Question

Mathematics and slope

Answer 1

y = 3x -5

Explanation:

y = mx +b

m = 3

b = y - 3x = -2 - (3 x1) = -5

y = 3x - 5

Answer 2

y = 3x - 5

Explanation:

m = 3 ; (1,-2)

y-y₁ = m(x-x₁)

y - [-2] = 3 (x - 1)

y + 2 = 3x - 3

y = 3x- 3 - 2

y = 3x - 5