# Sketch a graph of the function. Use transformations of functions whenever possible. f(x)=2x^{2} - 1

Sketch a graph of the function. Use transformations of functions whenever possible.
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Malena
First graph function $y={x}^{2}$ Then, to obtain graph of function do following transformations: -stretch vertically by a factor of 2 - shift 1 unit downward On graph: Red - $y={x}^{2}$ Blue -