Question

Write a linear equation that passes through the points (1,3) and (9,-13) .​

Answer 1

y = -2x + 5

Explanation:

Find the slope between the points:

m = (y₂ − y₁) / (x₂ − x₁)

m = (-13 − 3) / (9 − 1)

m = -2

Use point-slope form to wire the equation

y − y₁ = m (x − x₁)

y − 3 = -2 (x − 1)

If desired, simplify to slope-intercept form.

y − 3 = -2x + 2

y = -2x + 5