Okay.
This thing is showing me a graph with some points on it, and then says "Use the graph of f to sketch each graph."
So if y=f(-x), do I just make y the negative value of x? HAAAAAAAALP. :(
I dunno, put it in your graphing calculator. :robotveryhappy:
I've been lost in pre-calc all year so far; I play Tetris on my calculator during class and somehow do well on the tests... :(
Quote from: Snorkel on October 02, 2007, 02:32:56 PM
I dunno, put it in your graphing calculator. :robotveryhappy:
I've been lost in pre-calc all year so far; I play Tetris on my calculator during class and somehow do well on the tests... :(
I did, it didn't help. >.>
the graph of f(-x) is a reflection of f(x). think about which axis it is flipped across.
use examples if you need help. for example, use:
f(x) = x^2
or
f(x) = x^2 - 1
and see what happens when you do f(-x).
Quote from: blue_slime on October 02, 2007, 02:44:09 PM
use examples if you need help. for example, use:
f(x) = x^2
or
f(x) = x^2 - 1
and see what happens when you do f(-x).
Alright, I got it.
Thanks. :)
Try to bring up my C- in that class...:D
np. and sorry, maybe f(x) = x^2 - 1 was not really a good example. f(x) = x^2+3x+2 would have been better :P