Question

Dilate triangle PIT by k=3
P(-1,1) I(2,1) T(2,2)
P'( , ) I'( , ) T'( , )
Enlargement or Reduction

Answer 1

please help was sick when it was taught please help

Answer 2

if you can help teach me i would be happy i need to do like 7 more of these so please if you can help. so i know how

Answer 3

yes

Answer 4

no there is coords so you can plot and figure it out

Answer 5

don't you see it?

Answer 6

kk

Answer 7

i have like 7 more like this

Answer 8

Er, sorry I don't know. :/

Answer 9

This will help teach you: http://www.mathwarehouse.com/transformations/dilations/dilations-in-math.php

Answer 10

so i multiply 3 on both x and y?

Answer 11

to get p'

Answer 12

Well the lengths are multiplied but to get the points you'll have to add the new lengths to the original points. Not sure how to explain but try sketching it.

Answer 13

?

Answer 14

would it be P'(-3,3) I'(6,3) T'(6,6) ???

Answer 15

then it being Enlargement?

Answer 16

No I don't think you can just multiply it like that

Answer 17

oh then can you help me understand show me how you do it? sorry i was sick when they taught everyone else and my teacher was not there to be able to help me today when i cam to get it.

Answer 18

Sure but I'm not home atm and the campus is closing lol. Lemme know in 2 hours if you still need help.

Answer 19

ok i will wait

Answer 20

@wolfe8

Answer 21

????

Answer 22

you able to help
?

Answer 23

Sure. So here's the deal: when you dilate something, what you are changing is the length of the sides. You are given the coordinates. That's why you can't just multiply k with the points. You need to find the distances, then multiply with k to find where P'I'T' lie. That's why sketching is easier.

Answer 24

well did you sketch it

Answer 25

That's your homework...

Answer 26

well i thought you were gonna do this with me so i can learn it

Answer 27

Ok hold on.

Answer 28

thank you

Answer 29

hope fully i will understand this

Answer 30

nvm i gtg mom needs me

Answer 31

So you have http://sketchtoy.com/58702745 right? And then you will multiply those distances with 3 and you get http://sketchtoy.com/58702833