How can you figure out This math problem?

Question

17. Write an equation in slope intercept form (y=mx+ b), if it includes the point (-4, 10), with a slope of m= -3.

Answer 1

y - y₁ = m(x - x₁₎

y - 10 = -3(x + 4)

y - 10 = -3x - 12

y = -3x - 2