Question

find f(2) and f(a+h) when f(x)=3x^2+2x+4

Answer 1

just substitute 2 instead of x
and a + h instead of x

Answer 2

Plug 2 into the equation and that will give you the value of f(x). Do the same with(a+h)

Answer 3

i got 20 for the first one but you lost me at the (a+h)

Answer 4

Where ever there is an x in the equation replace it with (a+h).

Answer 5

3 ( a+h)^2 +2 (a+h)+4 then get the brackets out of here :d

Answer 6

f(?) the (?) simply telles you what value to input in the equation.

Answer 7

so is it f(2)=20 and f(a+h)= 3(a+h)^2+2(a+h)+4?

Answer 8

f(2) = 20 is correct.
But you have to simplify 3(a+h)^2+2(a+h)+4 =
3(a^2 + 2ah + h^2) + 2a + 2h + 4 =
3a^2 + 6ah + 3h^2 + 2a + 2h + 4

Answer 9

so that is the correct answer wow that was long but thank you :D

Answer 10

You are welcome.