Literal equations: d + 3n = 1, for n

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

What is the slope of the line that contains the points (-2,1) and (0,-3)

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?