Question

PLEASE HELP ITS A FUNCTION

Answer 1

f(3) is equal to 23.

In order to solve for f(3), you must put 3 in for all values of x. This is what the notation of the 3 being in parenthesis means. So we take the original and place 3 in every time we see x.

f(x) =
`2x^(2) + 5 √(x - 2)`

f(3) =
`2(3)^(2) + 5 √((3) - 2)`

f(3) =
`2(9) + 5 √(1)`

f(3) =
`18 + 5(1)`

f(3) =
`18 + 5`

f(3) =
`23`