Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
-$$y = x ^ { 2 } - 13$$
A) Shift the graph of $y = x ^ { 2 }$ down 13 units.
B) Shift the graph of $y = x ^ { 2 }$ right 13 units.
C) Shift the graph of $y = x ^ { 2 }$ left 13 units.
D) Shift the graph of $y = x ^ { 2 }$ up 13 units.

Question

Quizplus · Accepted Answer

The equation $y = x^2 - 13$ represents a vertical shift of the graph of $y = x^2$ downwards by 13 units, because the -13 is subtracted directly from the $y$ value of the original function.

Choose the One Alternative That Best Completes the Statement or Answers