Reflection across y=x is a special case transformation

The original triangle has vertices A(-5,1), B(-4,3), C(-2,1), D(-3,-1) so the transformed triangle has vertices
A'(1,-5), B'(3,-4), C'(1,-2), D'(-1,-3)
Choice A'(1,-5)
Is there any choices for it
C: at y=5
The formula is y=mx+b (b meaning the y-intercept) so that +5 is where your y-intercept is gonna be!
If you use 1/8 of a tomato which is really small it would make three salads