Question

The point (1,1) is the image under the translation (x,y) (x+3), y-3). What is the preimage of this point?

Answer 1

@emcrazy14

Answer 2

I don't remeber even learning this!

Answer 3

umm you were typing but I dont see anything

Answer 4

@emcrazy14

Answer 5

do you not know it?

Answer 6

The black point is (1,1) The red point is where your preimage point will be.

Answer 7

so its (-2,4)

Answer 8

Translation simply means moving a point in a particular direction. Yes.

Answer 9

oh i didnt know what premage meant

Answer 10

preimage

Answer 11

See if you add 3 to -2 you get 1. And if you subtract 3 from 4 you get 1.
So it's (-2,4) ----> (1,1)

Answer 12

Oh yeah I figured that out, i just didnt know what that word mean, which i thought would change everything.

Answer 13

(-2,4) is the preimage. (1,1) is the point you get after translation.

Answer 14

ok, preimage means the end result of it?

Answer 15

hmm I guess so

Answer 16

oh there you are

Answer 17

Pre-image is the point before you have made an changes. The original point.

Answer 18

*any

Answer 19

umm actaully, isnt it (4, -2)?

Answer 20

If you take (4,-2) as the preimage, try to add up the translation factor i.e (+3,-3) to see if you get (1,1)?

Answer 21

Oh, right it has to work both ways!

Answer 22

Yes.

Answer 23

ok, thanks for explaining. Hope I wasn't a pain!