Final answer:
The graphical method of adding vectors involves drawing vectors on a graph and adding them using the head-to-tail method. To select points on a vector graphic, you can use computer software or online tools that allow you to manipulate and analyze vectors.
Step-by-step explanation:
The graphical method of adding vectors involves drawing vectors on a graph and adding them using the head-to-tail method. The resultant vector is determined by the magnitude and direction of the vector sum. To select points on a vector graphic, you can use computer software or online tools such as virtual physics simulations that allow you to drag vectors onto a graph, change their length and angle, and display the magnitude, angle, and components of each vector in different formats.