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?

I have never done one where the triangle is already over the x-axis...do we flip it up or down...
Please help me figure this out...

3 answers

A(1,4) ---> A'(1,-4)
B(3,-2) --->B'(3,2)
C(4,2) ---> C'(4,-2)

Can you see what happened?
Plot he original and then the new one, use different colours to draw the lines of each triangle and notice the result.
Thank you so much - that really helped
yes thank you Reiny!!!