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Which of the following functions are quadratic functions? (Select all that apply.) A.f(x) = 2x − 4 B.f(x) = 3 − x2 C.f(x) = 3x2 − x − 6 D.f(x) = 3 x2
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Which of the following functions are quadratic functions? (Select all that apply.)

A.f(x) = 2x − 4
B.f(x) = 3 − x2
C.f(x) = 3x2 − x − 6
D.f(x) = 3 x2

User Steely Wing
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C. because in order for it to be a quadratic the equation has to have a squared value
(ax2+bx+c)

User Styler
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