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Sunshine447
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Quadrilateral ABCD and its dilation, quadrilateral A'B'C'D', are shown on the coordinate plane.
If the center of dilation is at the origin, by what scale factor was quadrilateral ABCD dilated?http://learn.flvs.net/webdav/educator_geometry_v14/module06/img/06_06b_04_03_lg.gif
 2 years ago
 2 years ago
Sunshine447 Group Title
Quadrilateral ABCD and its dilation, quadrilateral A'B'C'D', are shown on the coordinate plane. If the center of dilation is at the origin, by what scale factor was quadrilateral ABCD dilated?http://learn.flvs.net/webdav/educator_geometry_v14/module06/img/06_06b_04_03_lg.gif
 2 years ago
 2 years ago

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Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
@apple_pi @ashleyvess07 @giovkast
 2 years ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.1
If the center is 0,0 then to find the scale factor just take any of the points on the smaller figure e.g. A(0,3) and the corresponding point on the larger figure e.g. A'(0,9). Work out the distance of each from the center of dilation (0,0). The distances will be reduced at an equal ratio as the figure.
 2 years ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
so it's 1/3?
 2 years ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
I dont know... I'm so confused @apple_pi
 2 years ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.1
Actually no, the original figure is ABCD not A'B'C'D, and the figure is being dilated, so the scale must be > 1
 2 years ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
why >1? @apple_pi
 2 years ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.1
well, scale of 1 means no increase or decrease. scale of > 1 means it is being enlarged. scale of < 1 means it is being shrunken.
 2 years ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
will it always be 1, >1, or <1? There's no other possible answers?
 2 years ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.1
What I meant by > 1, is that it is definitely 3 not 1/3
 2 years ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
oh ok thanks
 2 years ago
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