A carpet installer charges a flat rate of $40,

glad to know but there is no question here...

Step-by-step explanation:

A carpet installer charges a flat rate of $40, plus $1.50 per square foot for labor. So, the total cost for labor depends on the amount of carpet

installed.

x≥0 Domain

y = 40+1.5x relationship

y≥40 range

Step-by-step explanation:

The domain is the amount of carpet installed. We can install zero carpeting or any positive amount of carpeting.

x≥0

Now writing the equation for the cost

They charge 40 flat rate plus 1.50 per square foot

y = 40+1.5x

Let x = 0

y = 40+0

Even if they do not install anything, they still charge 40 dollars flat rate. That is the minimum amount we have to pay. As x increases, the cost will increase.

That is the range, or the values of y

y≥40