Question

Which represents a quadratic function? ​

Answer 1

b is the answer

Explanation:

f(x) = ax^2 + bx + c

Answer 2

c)
`f(x)=-7x^(2) -x+2`

Explanation:

Hi there!

A function, when it comes to discussing the degree of a polynomial one. We classify them accordingly to the highest exponent.

f(x)=-3x+2 (1st degree since -3x=-3x¹)

f(x)=0x² +3x-3 well, 0x²=0 then f(x)=0x² +3x-3=f(x)=3x-3 (1st degree Linear function with b≠ 0)

f(x) =-7x²-x+2 (2nd degree -Quadratic Function)

f(x)=2x³+2x²-4 (3rd degree -Cubic Function)

So it's the third one from top to bottom, or c) f(x)=-7x²-x+2