Answer:
5 units.
Explanation:
To find the distance between two points in the coordinate plane, use the distance formula below:
[tex]\begin{gathered} Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\ (x_1,y_1)=A(0,0) \\ (x_2,y_2)=B(3,4) \end{gathered}[/tex]Substituting the points gives:
[tex]\begin{gathered} AB=\sqrt[]{(3-0)^2+(4-0)^2} \\ =\sqrt[]{(3)^2+(4)^2} \\ =\sqrt[]{9+16} \\ =\sqrt[]{25} \\ AB=5\text{ units} \end{gathered}[/tex]The distance from A to B is 5 units.