For Exercises 25-28, what is a reflection rule that maps each triangle and its image? SEE EXAMPLEd 25. \( D(3,6), E(-4,-3), F(6,1) \) and \( D^{\prime}(1,6), E^{\prime}(8,-3), F^{\prime}(-2,1) \)
\[
\begin{aligned}
\left(\frac{3+1}{2} \cdot \frac{6+6}{2}\right) & =(2,6) \\
x & =2
\end{aligned}
\]
26. \( G(9,12), H(-2,-15), J(3,8) \) and \( G^{\prime}(9,-2), H^{\prime}(-2,25), J^{\prime}(3,2) \)
27. \( K(7,-6), L(9,-3), M(-4,6) \) and \( K^{\prime}(7,-4), L^{\prime}(9,-7), M^{\prime}(-4,-16) \)