Question

Write the equation, in point-slope form, of the line passing through the points (-1, -2) and (3, 10)?

Answer 1

y+2=3(x+1)

Explanation:

1. find the slope

m=y2-y1/x2-x1

m=10-(-2)/3-(-1)

m=10+2/3+1

m=12/4

m=3

slope is 3

2.point-slope formula

y-y1=m(x-x1)

y-(-2)=3(x-(-1))

y+2=3(x+1)