Question

If T: (x, y) → (x - 7, y + 2), then T-1: (x,y) → _____.
(no picture)

Answer 1

just subtract 1 off each cooridinate

Answer 2

its like f(x) = x - 7 so f(x) - 1 = x-8
and f(y) = y+2 so f(y)-1 = y+1
so you have T-1 = (x-8,y+1)

Answer 3

(x-7,y+2) - 1

Answer 4

understand?

Answer 5

at least that what I think you asking :)

Answer 6

T-1(x,y) is odd notation I think, for a function
That is like (f -1)(x) I think we would say f(x)-1, but if these two things mean the same thing I think I know what its asking....

Answer 7

sort of but i'm 99% sure that is in correct. though i do not have any idea how to do this, it is a multiple choice question and my options are:
a. (-x over 7, y over 2)
b. (-7x, 2y)
c. (x- 7,y- 2)
d. (x+ 7,y- 2)

**by "over"i mean a fraction bar**

Answer 8

is this inverse?

Answer 9

do you mean inverse of T?

Answer 10

its d

Answer 11

it doesnt say

Answer 12

is it T raised to the -1?

Answer 13

not T minus 1

Answer 14

which class are you in?

Answer 15

\[T^{-1}\]

Answer 16

not T-1

Answer 17

geometry~

Answer 18

it wants the inverse
so we have f(x) = x-7 so f^(-1)(x) = x+7 and g(x) = x+2 so g^(-1)(x) = x-2

Answer 19

heres the question. they aren't too specific..

Answer 20

right

Answer 21

I'm with xx0ck3r , it' s d

Answer 22

that ^-1 is the notation for inverse

Answer 23

*zz

Answer 24

so read my comment with f(x) and g(x)

Answer 25

ok thanks

Answer 26

np

Answer 27

when you want to show something raised to a power, use ^
like 2^3 = \[2^{3}\]