If Alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2

5xy2

–8x2y

–2x2y

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step-by-step explanation:

the correct option is b

step-by-step explanation:

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)