The graph of the funtion [tex]y=12x^2[/tex] is more narrow than the parent function [tex]y=x^2[/tex] so the answer is true. It is more narrow due to the value of a, the coefficient of x². When a > 1, it shrinks the graph. If 0 < a < 1, then the graph would stretch.
Based on the graph attached, we know a will not be a negative number, since the graph is open upward instead of downward. A negative coefficient "flips" the graph. Since it goes through the point (1, 2) it will not be the parent function y = x²; if you substitute 1 in for x you would get a value of 1, not 2. Therefore the choice must be y = 2x².