Answer:
Domain
y = 40+1.5x relationship
range
Step-by-step explanation:
The domain is the amount of carpet installed. We can install zero carpeting or any positive amount of carpeting.
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