Graph the points $X\left(−3, 5\right)$, $Y\left(−2, 3\right)$, and $Z\left(−1, 4\right)$. Connect them to make a triangle.  

1. Reflect the triangle across the $y$-axis. What are the new coordinates of point $Z$?

2. Translate the original triangle down $6$ units and right $3$ units. What are the new coordinates of point Y?

3. Dilate the original triangle by multiplying each coordinate by $−1$. Describe the new shape you create.