Question

PLZ HELP FAST!!!!!!!!

Shannon's rain-catcher has 8 inches of water in it. Each day, 3 inches of water are added to the rain-catcher. Let y represent the total number of inches of water in the rain-catcher after x days. Express the equation in the form of y=mx+b .

Answer 1

8!in is the initial value at 0 days which represents b=8
The rate of change is 3in per day, this rate is the slope m = 3
Now substitute
y = 3x + 8