Question

Please help! Determine which function(s) is not a linear function. Select all that apply.

y=x^3/3

y= x/3

x=3

y= √x-3

y= | x+3 |

y=3x

Answer 1

I think it would be y = x^3 / 3
Because this would form some sort of a curved line
And I think it would also be
$\sqrt{x - 3}$