7. the graph below represents a rock climber's height as she ascends a hill.

part a: the above graph is (circle one) linear/nonlinear.
part b: is the above graph a function explain.

Which function can be used to model the monthly profit for x trinkets produced? f(x) = –4(x – 50)(x – 250) f(x) = (x – 50)(x – 250) f(x) = 28(x + 50)(x + 250) f(x) = (x + 50)(x + 250)