describe the single transformation that would be equivalent to a reflection over the y-axis followed by a reflection over the x-axis

Answer 1

reflection in the y-axis
(x,y) ---> (-x,y)

reflection in the x-axis
(-x,y) ---> (-x, -y)

so (x,y) --> (-x,-y) , which is a reflection in the origin.

pick a point and illustrate it on a grid.
e.g. watch what happens to (3,5)

Answer 2

Reflection

Answer 3

no