Let f(x)=34x2−1. the function g(x) is a vertical stretch of f(x) by a factor of 8. what is the equation of g(x)? enter your answer in the box. g(x) =

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.