Question

Which is a cubic function?

f(x) = 3x + 1
f(x) = 3x2 + x + 2
f(x) = 5x3 + 2x + 1
f(x) = x3 + x4 + 5

Answer 1

C. f(x)=5x3 + 2x + 1

Explanation:

Answer 2

`f(x) = 5x {}^(3)+ 2x + 1 \: is \: a \: cubic \: funtion.`