Question

Write a linear equation in point slope form for the line that goes through -1,3 and 2,-9

Answer 1

y - 3 = -4(x + 1).

Explanation:

First, calculate the slope (m) using the formula:

y - y1 = m(x - x1),

m = (y2 - y1) / (x2 - x1),

where (x1, y1) = (-1, 3)

(x2, y2) = (2, -9):

m = (-9 - 3) / (2 - (-1))

= (-12) / (3)

= -4.

Now substitute the values into the point-slope formula:

y - 3 = -4(x - (-1))

y - 3 = -4(x + 1).