Consider again the function
The Figure
shows the graphs of and also the graphs of
which are obtained by scaling the graph of vertically by a factor
or , respectively.
The graph in this Figure is obtained from that of by a combination
of scaling and shifting:
It is the graph of the function
Hint:
Figure out the scale by going unit to the right from the vertex,
and see what happens to the function value. Consider the location of
the vertex.