Mathematics, 20.09.2019 06:00, kaylienguyen
Which of the following quadratic functions has a graph that opens downward? check all that apply.
a. y=60x-15x^2
b. y= -(5+2x^2)
c. 2x^2-9x+3
d. x^2+4x+8
Answers: 1
term. 
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Which of the following quadratic functions has a graph that opens downward? check all that apply.
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