Mathematics, 04.02.2020 12:04 carolinehodges

Which of the following quadratic functions has a graph that opens downward?

check all that apply.

a. y=2x-x^2
b. y= 1/3x^2-8x-13
c. y=2/3x^2-13x+5
d. y= -(3+x^2)

Answers: 1

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Which of the following quadratic functions has a graph that opens downward?

check all t...