Question

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

Answer 1

`3x + y = 2`

Explanation:

`y - y_1 = (y_2 - y_1)/(x_2 - x_1)(x - x_1)`

`y - 5 = (-7 - 5)/(3 - (-1))(x - (-1))`

`y - 5 = (-12)/(4)(x + 1)`

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

`y - 5 = -3x - 3`

`3x + y = 2`