Question

Find f(6) if f(x) = x2 ÷ 3 + x.

Answer 1

The value of f(6) is, 18

Explanation:

Given the function:

`f(x) = x^2 / 3+ x` .....[1]

We have to find the value of
`f(6)`.

Put x = 6 in [1] we have;

`f(6) = 6^2 / 3+ 6`

⇒
`f(6) = 36 / 3 +6`

⇒
`f(6) = (36)/(3)+6`

Simplify:

`f(6) = 12 +6 = 18`

Therefore, the value of f(6) is, 18

Answer 2

A function is denoted as y = f (x), where x is the argument or input of the function. This means that from f(6) follows that x= 6, and to get the answer we should replace x with 6.

f(6)=6^2÷ 3 + 6= 36÷ 3 + 6= 12+6= 18

f(6)=18