Question

Describe the transformation of the graph of f into the graph of g as either a horizontal or vertical stretch.
f(x)= squareroot of x and g(x)= 3 squareroot of x

Answer 1

Vertical stretch. For every x, f(x) is 3 times less than g(x). So, imagine taking the graph of f, and "stretching" it up at every point so that it is 3 times higher at every point.