Functions and transformations 2

This applet shows the graphs of f(x) and g(x), where g(x) = k f(x). So when k = 2, g(x) = 2 f(x) = 2 x^2.

Change k. Change a to move P. Describe the geometric relationship between f(x) and g(x). What is the relationship between PR, QR and k? What about when k = -1?