Which of the following formulas would find the slope of a line using two points?

Evaluate the following expression 1/3^2

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 point is a solution to y s 4x + 5?