5. Dilations
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The given translation rule tells that for every vertex we should subtract 1 from the x-coordinate and add 3 to the y-coordinate.
A'(1,2), B'(-1,7), C'(-4,8)
(x,y) → (x- 1,y+ 3) To find the coordinates of the vertices of the image, we need to subtract 1 from the x-coordinates and add 3 to the y-coordinates of the vertices of the preimage. ccccc (x,y) &→ &(x- 1,y+ 3) & → & (x',y') A(2,-1) &→ & (2- 1,-1+ 3) &→ & A'(1,2) B(0,4) &→ & (0- 1,4+ 3) &→ & B'(-1,7) C(-3,5) &→ & (-3- 1,5+ 3) &→ & C'(-4,8)