Which is the correct method to finding the next number in the pattern???

∆red ≅ ∆ by rule will give brainiest if possible

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.

Ineed the solution to this problem and the steps.