Question

Write an Equation given the point (1, -1) and a rate of 2.

Answer 1

y = mx + b

plug in the numbers to find b

-1 = 2(1) + b

simplify

-1 = 2 + b
-3 = b

write out the equation with the new info

the answer should be:
y = 2x - 3

Answer 2

y+1=2(x-1)

Explanation:

use point slope form