Question

Find f(6) if f(x) = x2 ÷ 3 + x.

1.) 4
2.) 10
3.) 18

Answer 1

18

Explanation:

Remember to use the order of operations.

First, write 6 wherever there is a X in the original equation. We know to do this because the ''f(6)'' tell us what X is. 6^2 / 3 + 6

Second, we need to find the answer to 6 x 6 or 6 squared. Rember that when you see 6^2, it does not mean 6 x 2. It means that number, times itself. 6 x 6 = 36

Now our equation looks like this. 36 / 3 + 6

Third, we divided 36 by 3. 36 / 3 = 12

Now our equation looks like this. 12 + 6

Finally, we add 12 + 6 together for our final answer. 12 + 6 = 18

Answer 2

Plug 6 for x.

f(6) = 6^2 / 3 + 6
f(6) = 36 / 3 + 6
f(6) = 12 + 6
f(6) = 18