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Mathematics 9 Online
OpenStudy (anonymous):

Which equation is NOT a quadratic equation? A. y=x^2+4 B. y=4x^2-8x C. y=3x-9 D. y=3x^2

OpenStudy (accessdenied):

Quadratic means the highest degree is 2 in the equation.

OpenStudy (marco26):

C. It is a linear equation

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