Which shows the image of δrst after the rotation (x, y) → (y, –x)? image a, b, c, d? (tap image above)

Consider triangle RST. It has vertices R(-2,1), S(1,3) and T(-1,7).

If the rotation has rule

(x, y) → (y, –x),

then

R', S' and T' are exactly vertices of triangle from the first diagram.

correct choice is A.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

were is the equation