On graph paper, graph $ΔABC$ if $A\left(-3,-4\right)$, $B\left(-1,-6\right)$, and $C\left(-5,-8\right)$.  

1. What is $AB$ (the length of $\overline{AB}$)?

   Hint (a):

   Use the Pythagorean Theorem to find the length of $AB$.

2. Reflect $ΔABC$ across the $x$-axis to form $ΔA'B'C'$. What are the coordinates of $B'$? Describe the function that would change the coordinates of $ΔABC$ to $ΔA'B'C'$.

3. Rotate $ΔA'B'C'$ $90°$ clockwise ($\circlearrowright$) about the origin to form $ΔA''B''C''$. What are the coordinates of $C''$?

4. Translate $ΔABC$ so that $(x, y) → (x + 5, y + 1)$. What are the new coordinates of point $A$?