Question

In a certain region, the equation yˆ=19.485x+86.912 models the amount of a homeowner’s water bill, in dollars, where x is the number of residents in the home.

What does the slope of the equation represent in context of the situation?


The water bill increases by about $87 every month.

The water bill increases by about $19 every month.

The water bill increases by about $19 for every additional resident in the home.

The water bill increases by about $87 for every additional resident in the home

Answer 1

The answer is C. The water bill increases by about $19 for every additional resident in the home.

Explanation:

The equation above consists of y as the dependent variable, x as the independent variable, 19.485 as the slope, and 86.912 as the constant. The constant represent the fixed water bill. The x variable represents the additional water usage.

Answer 2

The water bill increases by about $19 for every additional resident in the home

Explanation:

This is because times x shows that it is to each and every person and it is increasing.