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4vir4ik [10]
3 years ago
6

A triangle has coordinates A (1, 5), B (-2, 1) and C (0, -4). What are the new coordinates if the triangle is dilated with a sca

le factor of 1/5?
Mathematics
1 answer:
Brilliant_brown [7]3 years ago
8 0
IF you are dilating about the origin, which you didn't exactly state, the new coordinates are A' (1/5, 1), B' (2/5, 1/5), C' (0, 4/5).  Dilation is all about distance, so you have to move the new coordinates to whatever the scale factor is times the x and y distance.  For example, A is at (1, 5), so 1/5 of 1 is 1/5, and 1/5 of 5 is 1, hence your new coordinate for A.  It is a fifth of the distance from the origin as its preimage is.
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