Let f(x) = 7x and g(x)=7x+2−4 which transformations are needed to transform the graph of f(x) to the graph of g(x)? select each correct answer. question 4 options: vertical translation 2 units up. vertical translation 4 units down. vertical translation 4 units up. horizontal translation 2 units left. horizontal translation 4 units left. horizontal translation 2 units right.