Question

A line passes through the points (2, 9) and (1, 0). What is its equation in slope-intercept form?

Answer 1

y=9x-9

Explanation:

first we need to know what is M

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

m=(0-9)/(1-2)

m=-9/-1

m=9

use the point above and plug it in

y=mx+b

0=1*9+b

b=-9

slope-intercept form y=mx+b (put the number in)

y=9x-9