Zachary purchased a computer for $1,200 on a payment plan. Four months after he purchased the computer, his balance was $780. Five months after he purchased the computer, his balance was $675. What is an equation that models the balance y after x months?
The equation models the balance y after x months.

y = 105x

Step-by-step explanation:

He loses $105 per month

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)

what graph

step-by-step explanation: