Question

weeks, x. number of weeks, x account balance (dollars), y 0 80 1 65 2 50 3 35 \square = \square - \square 80 15x 80x y

Explanation:

Step1: Identify initial balance

When $x=0$, $y=80$, so initial value is 80.

Step2: Calculate weekly change

$\text{Change per week} = 65-80 = -15$, so rate is $-15x$.

Step3: Form the equation

Combine initial value and rate: $y = 80 - 15x$

Answer:

$y = 80 - 15x$