What is the cost of a swimming pool cover. the pool is bounded by and and it costs $2 / foot for the cover. One unit of the x and y axes are 50 feet.

I have tried the following:

Area under the graph

Which is

Which equals

.

Area of cover is rectangle less area under the graph.

That multiplied by 50, and then by 2

Equals

My textbook has $18,856. I am not even in the same ball park.

Thanks

Regards

Craig.