Describe the transformations that produce the graph of g from the graph of f. ; g(x) = -5|x| stretch horizontally by a factor of 5. reflect it across the y-axis. stretch vertically by a factor of 5. reflect it across the y-axis. stretch vertically by a factor of 5. reflect it across the x-axis. stretch horizontally by a factor of 5. reflect it across the x-axis.