Question

Ok, my algebra 2 teacher gave us this: f(x), f(-x), and -f(x) what do these mean?

Answer 1

is it for even and odd functions ?

Answer 2

no, he gave them to us with other letters like h(x) and g(x) and k(x) resembling compressions and stretches and functions. i just got them totally confused and dont know which ones are which

Answer 3

oh...can you post a specific question so that i can help you in one certain direction.....this is more general

Answer 4

Ok, one second

Answer 5

For the functions f(x), write a function g(x) for the transformations: f(x)=-x-1; up 2 units, right 1 unit, compression by 1/4 <~~~ this is what he gave us on our worksheet

Answer 6

ok, u have f(x)=-x-1
when you shift it to right by one unit you increase the x-cordinate by 1.
so new x-coordinate X = x+1,
did u get this?

Answer 7

Ok, i understand that part of it

Answer 8

now there is vertical shift of up by 2
so new Y = y+2
ok?

Answer 9

ok, so left and right is increasing the X and up and down is increasing the Y?

Answer 10

left is increasing the x
right is decreasing the x
up is increasing the y, down is decreasing the y

Answer 11

Ohhhh, ok, ok, i got it!

Answer 12

compression by 1/4 means if f(x) was 4 earlier, it becomes 1 now.

Answer 13

Okkkk, is there some sort of formula for that? like the g(x) or k(x) or f(x) or h(x) with a + or - in front of them? i got really confused when my teacher was getting into that stuff

Answer 14

read this:
http://people.richland.edu/james/lecture/m116/functions/translations.html
ask if any doubts.

Answer 15

Oh, ok, that helps. thank you so much! :)

Answer 16

welcome ^_^