Question

(to evaluate a function)

given f(x)=3x-4,find f(4)

Answer 1

plug in 4 for x

Answer 2

3(4)-4=12-4=8

Answer 3

thats all there is to it?

Answer 4

yep!

Answer 5

damn im a dork lol. thank u so much for your help .math has always been my weakness

Answer 6

its ok! :)

Answer 7

if its ok and if your not busy can i ask your help on one more problem please?

Answer 8

well let me look at it first, then i will If i can help or not!

Answer 9

..............then i will tell if i.......

Answer 10

(find the x- and y- intercepts)

3x+4y=12

Answer 11

Plug in 0 for x to find y-int
plug in 0 for y to find x-int

Answer 12

i dont have a calculator at all much less one with those functions

Answer 13

thank u so much for all your help anyway i :) i will figure this one out on my own

Answer 14

x-int:
3x+4(0) = 12
3x=12
x=4-------------->c-int
y-int
3(0)+4y=12
4y=12
y=3

Answer 15

(4,0)
(0,3)

Answer 16

again thank u so very much so sorry to have made u go through all that trouble :)
u have a good night

Answer 17

its ok! take care! nite!!! :)