Factorise 80 x + 30 need explaining clearly

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

Which equation represents the function on the graph?

What is the x-intercept and y-intercept of the equation 2x+1. 2o