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Mathematics 17 Online
OpenStudy (anonymous):

SEE ATTACHMENT AND EXPLAIN.

OpenStudy (anonymous):

OpenStudy (anonymous):

It's the same thing..dilations

OpenStudy (anonymous):

Sort of like http://www.regentsprep.org/Regents/math/geometry/GT3/Graph1.gif

OpenStudy (anonymous):

So,no. Okay, it's fine.

OpenStudy (anonymous):

Do you get it?

OpenStudy (anonymous):

@andriod09

OpenStudy (andriod09):

so what don't you understand exactly? plot the points first.

OpenStudy (anonymous):

@samtasticc

OpenStudy (anonymous):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

sounds like a dilation from the origin so you would simply multiply each coordinate by the scale factor to get the new dilated point

OpenStudy (anonymous):

OK. Do you have a program called 'snipping tool'?

jimthompson5910 (jim_thompson5910):

Ex: F is the point (1,6) Scale it by 3 to get 1*3 = 3 and 6*3 = 18 So after dilating point F by a factor of 3 from the origin, you get (3, 18)

OpenStudy (anonymous):

oh. ok. i have to plot the original first though.

jimthompson5910 (jim_thompson5910):

Original |dw:1360883616648:dw|

jimthompson5910 (jim_thompson5910):

Dilation |dw:1360883650109:dw|

jimthompson5910 (jim_thompson5910):

Things to notice Everything has been tripled: the x coordinate, the y coordinate, and even the distance from the origin

OpenStudy (anonymous):

could you please graph it on my attachment ?

jimthompson5910 (jim_thompson5910):

if you found the distance from (0,0) to (1,6) (call it p) and compared it to the distance from (0,0) to (3,18) (call it q) you would find that the second distance is 3 times larger ie q = 3*p

OpenStudy (anonymous):

Please, if possible, graph it on my attachment?

OpenStudy (anonymous):

i attempted it earlier. but i did not do it correctly.

jimthompson5910 (jim_thompson5910):

are you supposed to plot both? or just the new point?

OpenStudy (anonymous):

No, both.

jimthompson5910 (jim_thompson5910):

ok so plotting (1,6) and (3,18) gives you the wrong answer?

OpenStudy (anonymous):

No, I multiplied and all..but I need help graphing.

OpenStudy (anonymous):

let me try plotting again.

jimthompson5910 (jim_thompson5910):

ok

OpenStudy (anonymous):

don't go.

jimthompson5910 (jim_thompson5910):

ok show me what you get

OpenStudy (anonymous):

ok. im plotting it on a photo editor [fotoflexer.com]

jimthompson5910 (jim_thompson5910):

ok whatever works

OpenStudy (anonymous):

okie. almost donee....

jimthompson5910 (jim_thompson5910):

ok

OpenStudy (anonymous):

gimme 10 mins?

jimthompson5910 (jim_thompson5910):

ok message me and I'll come back asap

OpenStudy (anonymous):

tnx!

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