2+2 what is it please

For which rational expression is -2 an excluded value of x?

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15