Question

When you own a pet, there are one-time costs, such as a leash, and continuing costs, such as food. Suppose the one-time costs for owning a small dog are $180, and the continuing costs are $400 per year Which function models the average annual cost of owning a small dog for x years?

Answer 1

answer to this question is f(x) = (180 + 400x)/x

Answer 2

Average cost per year = 400 + 180/x

Explanation:

Using the formula y=mx+b

We know that b is the y intercept or initial value. That would be the start up costs

m is the slope on costs each time x increases, that would be 400 per year

Costs = 400x + 180

To find the average cost per year, we need to divide by x

Average cost per year = (400x + 180)/x

= 400 + 180/x