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'? (1 point)
The reflection across the x-axis changes the sign of the y-coordinate of each point.
Therefore, the coordinates of A' are A'(-4, 1).
The coordinates of B' are B'(-5, 2).
The coordinates of C' are C'(-10, 1).