A rotation of 270° counterclockwise is given by the following rule:
[tex](x,y)\rightarrow(y,-x)[/tex]
Apply that rule to the coordinates of A, B, and C to find the coordinates of A''', B''', and C'''.
[tex]\begin{gathered} A(1,-1)\rightarrow A^{\prime\prime\prime}(-1,-1) \\ B(4,-2)\rightarrow B^{\prime\prime\prime}(-2,-4) \\ C(2,-4)\rightarrow C^{\prime\prime\prime}(-4,-2) \end{gathered}[/tex]
