# Question 89e53

Because there is no such thing as the "length of a point", I will assume that you want the length of the line segment joining the points $\left(- 3 , - 3\right)$ and $\left(\frac{3}{2} , \frac{7}{2}\right)$.
d=sqrt((3/2-(-3))^2+(7/2-(-3))^2#, so
$d = \sqrt{{\left(\frac{9}{2}\right)}^{2} + {\left(\frac{13}{2}\right)}^{2}} = \sqrt{\frac{81 + 169}{4}} = \sqrt{\frac{250}{4}} = \frac{5 \sqrt{10}}{2}$