I need help someone answer pleaseee

Find the power series expantion of f(z)=log(4=3z) at the point z=-1

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.

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.