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.

Answer 1

reflection in the x-axis takes (x,y) --> (x,-y)

so, just change the sign of the y-coordinate of each point.

e.g. (4,3) --> (4,-3)

Answer 2

(4,3) is the answer?

Answer 3

No. The answer is you change the y-coordinate signs of the points you were given! e.g. means "for example".