Question

What is the equation of the line that passes through (-1, 5) and (3, -7)?

Answer 1

Answer:

$3x + y = 2$

Step-by-step explanation:

$y - y_1 = \dfrac{y_2 - y_1}{x_2 - x_1}(x - x_1)$

$y - 5 = \dfrac{-7 - 5}{3 - (-1)}(x - (-1))$

$y - 5 = \dfrac{-12}{4}(x + 1)$

$y - 5 = -3(x + 1)$

$y - 5 = -3x - 3$

$3x + y = 2$