Enlarge/Shrink by a Scale Factor Easy & Difficult

Scale Factor 2:3

Enlarge/Shrink by a Scale Factor Easy & Difficult

3:4 Scale Factor 3 𝑠 2 𝑠 = 3 𝑠 4 𝑙 = 𝑠 𝑙 4 4 𝑙 𝑥 𝑙 𝑥 3𝑥 = 8 3𝑥 = 16 3 3 𝑠 4 𝑙 = 𝑠 𝑙 4 4 𝑙 𝑥 𝑙 𝑥 3𝑥 = 8 3𝑥 = 16 3 3 3 3 8 3 2 2 3 16 3 5 1 3 𝑥 = = 𝑥 = = Constant of Proportionality Scale Factor 3:4

4:9 Scale Factor 4 𝑠 1 𝑠 4 𝑠 9 𝑙 = 𝑠 𝑙 2 = 9 𝑙 𝑥 𝑙 𝑥 4𝑥 = 18 4𝑥 = 9 4 4 𝑠 9 𝑙 = 𝑠 𝑙 2 = 9 𝑙 𝑥 𝑙 𝑥 4𝑥 = 18 4𝑥 = 9 4 4 4 4 18 4 4 1 2 9 4 2 1 4 𝑥 = = 𝑥 = = Constant of Proportionality Scale Factor 4:9

8:5 Scale Factor 8 𝑙 3 𝑙 8 𝑙 5 𝑠 = 𝑙 𝑠 6 8 𝑙 5 𝑠 = 𝑙 𝑠 = 5 5 𝑠 𝑥 𝑠 𝑥 𝑥 8 𝑙 5 𝑠 = 𝑙 𝑠 6 8 𝑙 5 𝑠 = 𝑙 𝑠 = 5 5 𝑠 𝑥 𝑠 𝑥 𝑥 8𝑥 = 30 8𝑥 = 25 8𝑥 = 15 8 8 8 8 8 8 30 8 3 3 4 25 8 3 1 8 15 8 1 7 8 𝑥 = = = 𝑥 = = 𝑥 = Constant of Proportionality Scale Factor 8:5