Question

y=f(x)=3x

value of f(1/2)

Answer 1

You just need to substitute x with 1/2

Your answer will then be 3(1/2) which is 3/2 or 1.5

Answer 2

For this case we have a function of the form $y = f (x).$ Where:

$f (x) = 3^x$

We must find the value of the function when $x = \frac {1} {2}$

So, we have:

$f (\frac {1} {2}) = 3 ^ {\frac {1} {2}}$

By definition we have to:

$\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}$

Then, rewriting the expression:

$\sqrt {3} = 1.73$

Answer:

$3 ^ {\frac {1} {2}} = 1.73$