Question

With the points A(-4, -2) B(1, -3) C(2, -5) D(-1, 7).

What are the new points if the scale factor of dilation is 3?

Answer 1

• A'(-12, - 6); B'(3, - 9); C'(6, - 15); D'(-3, 21)

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The scale factor k affects the points with the rule:

• (x, y) → (kx, ky)

Apply the rule to the given points, given k = 3:

• A(- 4, - 2) → A'(-12, - 6);
• B(1, -3) → B'(3, - 9);
• C(2, - 5) → C'(6, - 15);
• D(-1, 7) → D'(-3, 21)