Question

You dilate the triangle below using a scale factor of 2.

Identify the new coordinates.

A' ( , )

B' ( , )

C' ( , )

Answer 1

see explanation

Explanation:

assuming the dilatation is centred at the origin

then multiply each of the original coordinates by the scale factor 2

A (1, 1 ) → A' (2(1), 2(1) ) → A' (2, 2 )

B (5, 2 ) → B' (2(5), 2(2) ) → B' (10, 4 )

C (3, 5 ) → C' (2(3), 2(5) ) → C' (6, 10 )