Giselle graphs the function f of x is equal to x squared Robin graphs the function g of x is equal to negative x squared How does Robin’s graph relate to Giselle’s?

For every x-value, Robin’s function g(x) = -x² is the opposite of Giselle’s f(x) = x². Changing every y-value to its opposite reflects a graph over the x-axis. So Robin’s graph is a reflection of Giselle’s graph over the x-axis.

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