we know that
The formula to calculate the distance between two points is equal to
[tex]d=\sqrt[]{(y2-y1)^2+(x2-x1)^2}[/tex]Find out the coordinates of point Q and point L
Looking at the graph
Q is (5,3) and L is (8,5)
substitute the given values in the formula
[tex]\begin{gathered} d=\sqrt[]{(5-3)^2+(8-5)^2} \\ d=\sqrt[]{(2)^2+(3)^2} \\ d_{QL}=\sqrt[]{13\text{ units}} \end{gathered}[/tex]