Big Ideas Math Geometry, 2014
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Big Ideas Math Geometry, 2014 View details
5. Dilations
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Exercise 52 Page 214

The given translation rule tells that for every vertex we should subtract 4 from the y-coordinate.

A'(2,-5), B'(0,0), C'(-3,1)

Practice makes perfect
We are given the vertices of â–ł ABC and a translation rule.

(x,y) → (x,y- 4) To find the coordinates of the vertices of the image, we need to subtract 4 from the y-coordinates of the vertices of the preimage. ccccc (x,y) &→ &(x,y- 4) & → & (x,y') A(2,-1) &→ & (2,-1- 4) &→ & A'(2,-5) B(0,4) &→ & (0,4- 4) &→ & B'(0,0) C(-3,5) &→ & (-3,5- 4) &→ & C'(-3,1)