Answer :

mhanifa

See attached

Given

  • Triangle DGF, with vertices D(- 2, 0), G(2, 0), F(2, - 2),
  • Scale factor r = 1.5.

Solution

Triangle DGF is plotted, blue figure.

Find the coordinates of the image using the rule:

  • (x, y) = (1.5x, 1.5y)

  • D' = (1.5*(-2), 1.5*0) = (-3, 0),
  • G' = (1.5*0, 1.5*2) = (0, 3),
  • F' = (1.5*2, 1.5*(-2)) = (3, - 3).

The points added to same plot, red figure.

View image mhanifa

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