Answer:
Robin’s graph is a reflection of Giselle’s graph over the x-axis
Explanation:
Giselle graphs the function f(x) = x2. Robin graphs the function g(x) = –x2.
Giselle graphs the function f(x) = x^2.
The quadratic equation is in the form of y=ax^2 + bx+c
when a= positive then parabola opens up
when a= negative then parabola opens down
f(x)= x^2 the graph of parabola opens up
g(x)= -x^2 , the graph of the parabola opens down
So the graph is reflected across x axis
Robin’s graph is a reflection of Giselle’s graph over the x-axis