Question

Tentukan bayangan titik A (5,1) dilatasi dengan k= 2 dan P (2,1)

Answer 1

X' = a + k(x - a)
y' = b + k(y - b)

x' = 2 + 2(5 - 2)
y' = 1 + 2(1 - 1)

x' = 2 + 2(3)
y' = 1 + 2(0)

x' = 2 + 6
y' = 1 + 0

x' = 8
y' = 1

= (8, 1)