Question

linear equation in slope-intercept form, A Cairn terrier weighs 30 pounds and is on a special diet to lose 2 pounds per month.

Answer 1

y=mx+b
Output = Rate of change * Time + Initial

In this case, the output is weight, and the initial weight is 30lbs. The rate of change is negative because the dog is losing weight.
Weight = -2(time) + 30