It can be observed 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 translates 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.At this time, note that these two graphs have the same shape and spread, but differ only in position.
２次関数のグラフの平行移動（下に凸）
