Given:
The coordinates of point A, (x1, y1)=(4, -3).
The coordinates of point B, (x2, y2)=(-4, 3).
The formual for the distance betweeen the points A and B is,
[tex]D=\sqrt[]{(x2-x1)^2+(y2-y1)^2}[/tex]Substitute the values.
[tex]\begin{gathered} D=\sqrt[]{(-4-4)^2+(3-(-3))^2} \\ D=\sqrt[]{(-8)^2+(6)^2} \\ D=\sqrt[]{64+36} \\ D=\sqrt[]{100} \\ D=10 \end{gathered}[/tex]Therefore, the distance between points A and B is 10.