Sandra graphed the system of equations that can be used to solve x^3-2x^2-11x+12=x^3-13x-12 what are the roots of the polynomial equation? a.) –12, 12 b.) –4, 3 c.) –3, 4 d.) –1, 1

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

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