Question

The image of the polygon ABCDE reflected across the x-axis. A(-1,-1),B(0,1),C(4,2),D(6,0),E(3,-3) The vertices of the image are....?

Answer 1

A reflection across the x-axis has the rule:

(x,y)→(x,-y).

Then:

• A(-1,-1)→A'(-1,1),
• B(0,1)→B'(0,-1),
• C(4,2)→C'(4,-2),
• D(6,0)→D'(6,0),
• E(3,-3)→E'(3,3).

Answer: the vertices of the image are A'(-1,1), B'(0,-1), C'(4,-2), D'(6,0) and E'(3,3).