Answer:
see attached
Explanation:
You want a graph of the function F(x) = 2x² -5.
Graph
A graphing calculator can help a lot when you want the graph of a function. This one is an x² function with a vertical translation of -5 and a vertical stretch by a factor of 2.
It is often useful to consider points ±1 or ±2 either side of the vertex, and the vertex itself.
The graph is attached.