If smart please help me!!!!..!
Triangle DEF with vertices D(1, 2), E(3, 4), and F(1, 4), is reflected across the y-axis, and then its image is reflected across the line y = x. Which single transformation moves the triangle from its starting position to its final position?

If smart please help me Triangle DEF with vertices D1 2 E3 4 and F1 4 is reflected across the yaxis and then its image is reflected across the line y x Which si class=