This equation what is the Y intercept f(x) = 250 x 6^x

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

For the feasibility region shown below find the maximum value of the function p=3x+2y

Graph each quadratic function and identify its key characteristics. f(x) = x^2 - 2x - 3