Question

ABC is reflected across the x-axis, then rotated 90° clockwise about the origin, and finally reflected across the line y = x to form ∆A′B′C′.

Answer 1

The general rule for a rotation has 90 degree about the origin and it is termed to rotate at any point by considering X and Y about the origin.

The degree counters clockwise and swaps between the angles.

The points has to taken with 5 and -9 and rotated 90 degrees about point and then reflected across the line y=9.

Answer 2

Answer:

Reflection is (x,-y)

90 clockwise (y,-x)

across y=x (y,x)

Step-by-step explanation:

original   reflect    90 clock     across y=x (final answer)

A   (1,1 )      (1,1)          (-1,-1)            (-1,-1)

B   (2,3)     (2, -3)     (-3, -2)         (-2, -3)

C   (2,1)      (2, -1)      (-1,-2)          (-2,-1)