Question

find the equation of a line passing through the points (-1,4) and (-5,12).Write the equation using function notation

Answer 1

Answer:

y = -2x + 2

Explanation

Given the coordinates (-1,4) and (-5,12)

The standard equation of a line is expressed as y = mx+c

m is the slope = 12-4/-5-(-1)

m = 8/-4

m = -2

Substitute m = -2 and the point (-1, 4) into the equation y = mx+c

4 = -2(-1)+c

4 = 2 + c

c = 4-2

c = 2

Get the required equation

Substitute m = -2 ans c = 2 into y = mx+c

y = -2x + 2