Question

triangle abc with coordinates A ( 2,3) B ( 3,5) C ( 7,4) is dilated by a scale factor of 2 what are the coordinates of the dilated figure triangle abc

Answer 1

If dilation is about the origin, each coordinate is multiplied by the scale factor.
  A'(4, 6)
  B'(6, 10)
  C'(14, 8)