Question

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

Answer 1

Hello!

The answer is:

$f(4)=\frac{4}{3}$

Why?

Evaluating a function means substituting the variable (x in this case) by the given value (4 in this case), so where is an "x" we should rewrite with the number 4.

So, evaluating the function for $x=4$ we have:

$f(4)=\frac{1}{3}(4)=\frac{1}{3}*4=\frac{4}{3}$

Have a nice day!

Answer 2

Answer: $f(4)=\frac{4}{3}$

Step-by-step explanation:

To solve the problem shown above, you only need to substitute x=4 into the given fucntion.

By definition, the value of x (which is this case is 4) is  called the input value and the value obtained when you susbtitute it into the function is called the output value.

Keeping the above on mind when you susbtitute x=4 into the function,  you obtain the  result shown below:

$f(x)=\frac{1}{3}x\\\\f(4)=\frac{1}{3}(4)\\\\f(4)=\frac{4}{3}$