Given f (x) = - 9x + 3 and g (x) = x4, choose

the expression for (fºg) (x).

Click on the correct answer.

-36x4 + 12

(-9x + 3) 4

dxt + 3x4

-9x4+3

The correct answer is the last one, at the bottom.

Step-by-step explanation:

You need to change in f (x) every 'x' for the expression given in g (x), since you have to build a compound function (fºg) (x).

So F (g (x)) = F (x4) = -9 * (x4) + 3

Resulting (fºg) (x) = -9x4+3 (I only changed 'x' for 'x4', the term + 3 is not changed since that is not a variable term, is just a constant number.