Here's the question you clicked on:
Sunshine447
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
@apple_pi @ashleyvess07 @giovkast
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.
I dont know... I'm so confused @apple_pi
Actually no, the original figure is ABCD not A'B'C'D, and the figure is being dilated, so the scale must be > 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.
will it always be 1, >1, or <1? There's no other possible answers?
What I meant by > 1, is that it is definitely 3 not 1/3