Answer:
a) A = (1, 2), A' = (3, 6)
b) B' = (9, 3)
Explanation:
From inspection of the given diagram:
A = (1, 2)
A' = (3, 6)
As the triangle has been enlarged by a scale factor of 3 and centre (0, 0), to find the coordinates of B' simply mulitply the coordinates of B by the scale factor:
As B = (3, 1)
⇒ B' = (3 × 3, 1 × 3) = (9, 3)