Question

Let f(x) = 3 x^2-5 x+3.

f(-3 ) =
f(4 ) =

Answer 1

Can you substitute -3 in for x?

Answer 2

yes

Answer 3

Cool, so lets see you do it, we can do it together :)

Answer 4

I got -23 for f(-3)

Answer 5

substitute...
3(-3)^2 -5(-3) +3
3(9) + 15 + 3
27 + 15 + 3
f(-3) = 45

...do the same for f(4)

Answer 6

no -25

Answer 7

oh nevermind I was thinking of derivitives

Answer 8

thanks