Question

Dilation mistake, I can't seem to find it...

So my problem is I need to find point B.
My givens of the original polygon are:
F(-6,-1)
G(-1,-1)
H(-2,-4)
I(-7,-4)
My givens of the dilated polygon are:
A(3,8)
D(1,2)

Answer 1

So far I have done the distance formula for AD and got 2sqrt(10) or 6.32
and
FI and got sqrt(10) or 3.16

Then I did 2sqrt(10) / sqrt(10) = 2

With me having 2, where do I go from there? Multiply G by 2, to find B?

Answer 2

Or, do I have to find the distance of BC by dilating GH?

Answer 3

how did you get 3.16?

the distance from f1 to which point?

Answer 4

F to I

Answer 5

https://gyazo.com/213cdb5601f71fd004ae25df1ba09e4c Theres a picture

Answer 6

yes thats the correct correspond line in the polygons

Answer 7

AB equals the length of FG * 2

Answer 8

Okay so once I divided 2sqrt(10) / sqrt(10) and got 2, I multiplied 2 by 3 because of FI and got 6, so now do I just add 6 to A's X cord?

Answer 9

so just work out length of FG.

Answer 10

Oh haha I was thinking that I had to add 6 to A's X

Answer 11

Okay so I got 10 for FG*2

Answer 12

the y coordinates are the same for points F and G so length of FG
= -1-(-6)

Answer 13

so 5*2 = 10

Answer 14

So B should rest on (10,8) ?

Answer 15

yea
AB = 10

Answer 16

I mean 13,8

Answer 17

yes

Answer 18

(13,8)

Answer 19

Okay, thank you :)

Answer 20

yw

Answer 21

theres no need to use the pythagoras formula for the length of the line if its horizontal or vertica.