Find the rule of f(4)

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

5/6+7/8what is the answer sealsdbdbshd

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.