To solve these dilation problems, we need to multiply the coordinates of each point by the given scale factor.
For Problem 1:
- The original rectangle KLMN has points at:
- K(-4, 4)
- L(4, 4)
- M(4, -4)
- N(-4, -4)
- Scale factor is 2, centered at origin (0,0).
- New coordinates = old coordinates × 2:
- K' = (-4×2, 4×2) = (-8, 8)
- L' = (4×2, 4×2) = (8, 8)
- M' = (4×2, -4×2) = (8, -8)
- N' = (-4×2, -4×2) = (-8, -8)
For Problem 2:
- The original rectangle PQRS has points at:
- P(0, -4)
- Q(6, -4)
- R(6, -8)
- S(0, -8)
- Scale factor is 1/4, centered at origin (0,0).
- New coordinates = old coordinates × 1/4:
- P' = (0×1/4, -4×1/4) = (0, -1)
- Q' = (6×1/4, -4×1/4) = (1.5, -1)
- R' = (6×1/4, -8×1/4) = (1.5, -2)
- S' = (0×1/4, -8×1/4) = (0, -2)
Final Answer:
Problem 1: Plot points K'(-8,8), L'(8,8), M'(8,-8), N'(-8,-8) and connect them to form the dilated rectangle.
Problem 2: Plot points P'(0,-1), Q'(1.5,-1), R'(1.5,-2), S'(0,-2) and connect them to form the dilated rectangle.
Parent Tip: Review the logic above to help your child master the concept of dilation worksheet.