What are the coordinates of point B on AC such that AB is 3 times as long as BC

What is f(3) for the quadratic functionf(x)=2x2 + x – 12? f -3g 3h 6i. 9

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

When y’all answer can y’all explain too !