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OpenStudy (anonymous):
Which function is a quadratic function? a. u(x)= -x+3x^2 - 8 b. v(x) = 2x^2 + 8x^3 + 9x c. y(x) = x^2 +3x^5 +4 d. z(x) = 7x^2+2x^3-3
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OpenStudy (acxbox22):
a because in a quadratic the degree of the polynomial cant be greater than 2
OpenStudy (anonymous):
it must be \[ax^2+bx+c\]
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