15) Determine whether the given function is linear. If the function is linear, express the function in the form

f(x) = ax + b.

(If the function is not linear, enter NOT LINEAR.)

f(x) = 3 + 1/3

f(x) =

14) Find a polynomial with integer coefficients that satisfies the given conditions.Q has degree 3 and zeros 5, 3i, and 3i.

Q(x) =

18) List all possible rational zeros given by the Rational Zeros Theorem (but don't check to see which actually are zeros). (Enter your answers as a comma-separated list.)P(x) = x³ 5x² + 17

x=