Triangle ABC is reflected across the x-axis. If the coordinates of the original shape are
A (-4,-1), B (-5,-2), and C (-10,-1), what are the coordinates of A', B', and C'?
a A' (-4,1), B' (-5,-2), and C' (-10,1)
b A' (-4,1), B' (-5,2), and C' (-10,1)
c A' (4,1), B' (5,2), and C' (10,1)
d A' (4,-1), B' (5,-2), and C' (10,-1)
The correct answer is b A' (-4,1), B' (-5,2), and C' (-10,1).
When a point is reflected across the x-axis, the x-coordinate remains the same, but the y-coordinate changes sign.
So, the coordinates of A' would be (-4,1), B' would be (-5,2), and C' would be (-10,1).