Question

I NEED MATH HELP!!!

Answer 1

so when is says x=7, it just means to plug in 7 to the equation, where you see x

Answer 2

in this case f(x)=-9x-2, so just plug in 7 into the equation, f(7)=-9(7)-2

Answer 3

when ever it says x= or f(x)=, plug that number into the x's of the equation, does that help?

Answer 4

YUUP! so now i just solve it right

Answer 5

yes, what did you get for the answer?

Answer 6

-65? I get the feelling that was to simple :P

Answer 7

thats incorrect

Answer 8

ok, thought so.

Answer 9

oh my bad its right XD

Answer 10

i thought is was -9(7)-7, not -9(7)-3, no -65 is 100% correct

Answer 11

do you get how to do it though?

Answer 12

haha ok. So what what happen to the f(7)

Answer 13

f(7) is just saying that you are plugging is 7 into all the x's in the equation

Answer 14

so you answer would be f(7)=-65, think of the f(x) as a y, they are the exact same thing, but as you get further into math you start to use f(x) instead of y, make sense?

Answer 15

yup! Thank you so much!

Answer 16

no problem, if you need anymore help just ask