Question

The image of a point under DO, 3 is (7, 2).

Its preimage is

Answer 1

@jim_thompson5910

Answer 2

@amistre64 :D

Answer 3

what does this "DO" map?

Answer 4

in this drawing, f maps a to b, a is the preimage and f(a) = b is the image

Answer 5

does "DO" map 3 into DO(3) = (7,2) ?

Answer 6

idk all ik is that d is dilation

Answer 7

and the o is kinda under the d actually

Answer 8

is the dilation factor 3 by chance?

Answer 9

yes

Answer 10

Do im gonna take a guess and say is dilation centered at the origin

Answer 11

yessss thats what do means

Answer 12

in order to UN dilate a factor of 3, just divide each component of the given point by 3

Answer 13

3(a,b) = (3a,3b) = (7,2)

3a = 7
3b = 2

what are a and b?

Answer 14

ummm 7/1 and 6/1

Answer 15

no wait ugh

Answer 16

hint ... divide by 3

Answer 17

2/1

Answer 18

2/3

Answer 19

b = 2/3 thats good

Answer 20

7/3 and 2/3

Answer 21

awesome!!

Answer 22

pkay now whats?

Answer 23

seriously it was that simple?grrr

Answer 24

On the graph below are three points X, Y, ans Z. Write the coordinates for the given dilation.

Answer 25

well, the preimage is (a,b)

and you know values of a and b ... soooo, plug them in

Answer 26

DO, 3 of X =

Answer 27

iv already posted that for a given factor, say 3, and a point (a,b)
the dilation 3(a,b) = (3a,3b)

that is basic enough that you should be able to do this one

Answer 28

For the transformation T, write the T-1.

T: (x, y)---> ( 2x, y + 5)

T -1 (x, y) --->