Question

Which of the following is a true statement about functions ?

Answer 1

Answer:

D. If $f$ and $g$ are functions then;

$(f\bullet g)(x) =f(x)\bullet g(x)$.

Step-by-step explanation:

The first option is not correct because composition of two functions is not commutative.

The second and third choice will also not yield the same result.

Let

$f(x)=x^2$ and $g(x)=2x$.

Then;

$(f\bullet g)(x)=2x^3$ and $f(x)\bullet g(x)=2x^3$.

The correct answer is option D.