Let's see that the graph of "y=(x+7)^2-9" is a translation of the graph of "y=x^2" by -7 in the x-axis direction and -9 in the y-axis direction.
Observe how the graph of "y=x^2" moves in parallel by -7 in the x-axis direction and -9 in the y-axis direction and overlaps with the graph of "y=(x+7)^2-9".
As the time , note that these two graphs have the same shape and spread , but differ only in position.