A landscape architect is designing a pool that has this top view:

1. How much water will be needed to fill this pool 4 feet deep?
2. Before filling up the pool, it gets lined with a plastic liner. How much liner is needed for this pool?
3. Here are the prices for different amounts of plastic liner. How much will all the plastic liner for the pool cost?

   plastic liner (ft2)	cost ($)
   25	3.75
   50	7.50
   75	11.25

Shade in a base of the trapezoidal prism. (The base is not the same as the bottom.)

1. Find the area of the base you shaded.
2. Find the volume of this trapezoidal prism.

1. Draw a line that you think is a good fit for this data. For this data, the inputs are the horizontal values, and the outputs are the vertical values.

   

2. Use your line of fit to estimate what you would expect the output value to be when the input is 10.

Select all of the given points in the coordinate plane that lie on the graph of the linear equation \(4x-y=3\).