Find the Component Form and Magnitude of the Indicated Vector $\mathrm { P } = ( 8,9 )$

Multiple Choice

Find the component form and magnitude of the indicated vector.
-Given that $\mathrm { P } = ( 8,9 )$ and $\mathrm { Q } = ( 9,16 )$ , find the component form and magnitude of the vector $\overrightarrow { \mathrm { PQ } }$ .

A) $\langle - 1 , - 7 \rangle , \sqrt { 50 }$
B) $\langle 1,7 \rangle , 50$
C) $( - 1 , - 7 ) , 50$
D) $\langle 1,7 \rangle , \sqrt { 50 }$