triangle ABC has coordinates. A(1,4); B(3,2); and C(4,2). Find the coordinates of the image A'B'C after a reflection over the X axis.

Question

(Show your work)

Answer 1

reflection in the x-axis just takes

(x,y) -> (x,-y)

so, just change the sign of all the y-coordinates.

Answer 2

Steve, is it??
A(1,4) -> A'(1,-4)
B(3,-2) -> B'(3,2)
C(4,1) -> C'(4,-2)