21.

Evaluate f(x)=1/3x for x = 4.

1 answer

To evaluate the function \( f(x) = \frac{1}{3}x \) for \( x = 4 \), we can substitute 4 into the function:

\[ f(4) = \frac{1}{3} \cdot 4 \]

Calculating this gives:

\[ f(4) = \frac{4}{3} \]

So, the value of \( f(4) \) is \( \frac{4}{3} \).