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AssignmentMultiple Choice

Introduction to Quadratic Functions

Question 1 • * FL-1200315-Algebra 1 Sem 2 - CR

Which is a quadratic function?

Answer
A
f(x) = 2x + x + 3
B
f(x) = 0x2 – 4x + 7
C
f(x) = 5x2 – 4x + 5
D
f(x) = 3x3 + 2x + 2

Explanation

A quadratic function has a highest power of x equal to 2, with a nonzero coefficient. In choice C, f(x) = 5x² − 4x + 5, the highest power is 2 and its coefficient is 5. Choice B has a zero coefficient on x², so it is linear, while choice D has a highest power of 3.

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