Understand Line Segment Transformation Properties Practice Test

Segment $$AB$$ has endpoints $A(1,2)$ and $B(4,6)$. The segment is translated by $(+3,+2)$ to form $A'B'$. What is the length of $A'B'$?

Segment $\overline{ST}$ has endpoints $S(0,0)$ and $T(6,8)$. It is reflected over the $x$-axis to form $\overline{S'T'}$. What is the length of $\overline{S'T'}$?