Select the correct answer from each drop-down menu. 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.

The relationship between the total cost for labor and the amount of carpet installed is _. <--[continuous, discrete]

The domain of the relation is x ≥ =_. <--[0, 1.5, 40]
The range of the relation is y ≥ =_.<--[0, 1.5, 40]