Question

What is a equation of the graph of the equation below translated down 3 units y=-x^2

Answer 1

To move a graph up c units, add c to whole function

going up a negative distance is the same as going down that same distance but positive

so to move y=-x^2 up by -3 units, add -3 to the whole function so we get
$y=-x^2-3$ as the translated equation