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Which of the following is NOT a quadratic function?
A. f(x) = x² + 3x
B. f(x) = x² - 6
C. f(x) = x2 + 2x + 6
D. 1(x) = -2x + 6​


Sagot :

Answer:

Letter D.

Explanation:

When we say QUADRATIC Function it can only have an exponent of 2 and must be in a expression, for example

x² - 2x + 8

x² + 3x +7