When the dilation of a line or is centered at the origin,
both the x and y coordinates are multiplied by the same value, k (which
represents the scale or ratio of dilation)
If ab is dilated by a factor of 2/5 to produce a’b’, then k
= 2/5
Since the dilation is centered at origin,
The y-coordinate of b' what will be 2/5 of the y-coordinate of b.
Actually, it is 4/5. When you multiply the coordinates of (10,2) by 2/5 (you do that since it is centered at the origin) you get 4/5 since you are finding the y-coordinate. (Trust me, I did the problem).
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