Answer
Vertical translation by $c$ units
Work Step by Step
The graph of $y=ax^2+c$ is the same graph of $y=ax^2$ only $c$ units vertically translated by $|c|$ units up if $c>0$ and down if $c<0$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.