Answer:
A=1/2(b)(h)
Step-by-step explanation:
A=1/2(7)(6)
A=21
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)
Answer:
15
Step-by-step explanation:
substitute the value of the variable into the equation and simply