Can somebody please help

Which of the following expressions is equal to 2x^2+8

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ

With number 11 ( show how you got the answer)