How does adding initial height affect maximum range?

Adding initial height to a projectile generally increases its maximum range. This is because a higher launch point allows the projectile to have a longer flight time and greater horizontal distance before it hits the ground, assuming all other factors remain constant. The increased vertical distance also means that the projectile can take advantage of its initial velocity for a longer duration, enhancing its overall travel distance. However, the effect depends on the angle of launch and initial velocity as well.