The point (–7, 1) when reflected across the origin maps onto
A) (7, 1).

B) (–1, 7).

C) (1, –7).

If the acute angle made by two intersecting lines l and m is 51° and image ABCD is reflected across the line l followed by a reflection across line m, then find the angle through which ABCD is rotated.

A) 51°

B) 25.5°

C) 102°

D) 26°

Find the scale factor of dilation if PQ is dilated to P′Q′ such that = 18 and = 6.

A) 12

B) 1∕3

C) 3

D) 24