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Ratios, proportions, and dilations — Homework
Use the Cross Products Property to solve each proportion, and apply the dilation rule (x, y) -> (kx, ky) as needed.
- 1.Solve the proportion: x/9 = 8/18.
- 2.Solve the proportion: 7/10 = x/40.
- 3.Dilate point C(5, -2) from the origin with scale factor k = 4. Find C-prime.
- 4.Dilate point D(6, 9) from the origin with scale factor k = 1/3. Find D-prime.
- 5.A triangle with a 10-unit side is dilated by scale factor k = 2.5. Find the new side length, and explain why the triangle's angles do not change.
🌲 Homeschool of the FutureTenth Grade · Math · week 19 homework