Question

On the graph below, what is the length of side AB? B ...

Answer 1

The distance between two points in the plane is:

`d(P,Q)=\sqrt[]{(x_2-x_1)^2+(y_2}-y_1)^2`

The points A and B have coordinates A(5,3) and B(5,6). Then the distance between them is:

`\begin{gathered} d(A,B)=\sqrt[]{(5-5)^2+(6-3)^2} \\ =\sqrt[]{(3)^2} \\ =\sqrt[]{9} \\ =3 \end{gathered}`

Therefore, the length of the side AB is 3 units.