Answer:
[tex]f(x) = 2x^2-3[/tex]
Step-by-step explanation:
You are missing information, but the question gives enough information for me to figure it out.
That function shifted down three units is : [tex]f(x) = 2x^2-3[/tex]. If your answer choice is a function, choose this one. If it is a graph, please use a graphing calculator, desmos, or another graphing website to compare it with.