What’s the answer and how do you figure these out?

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Two terms in a geometric sequence are a5=15 and a6=1 what is the recursive rule that describes the sequence?

An eagle is flying at a constant height of 1000root3 meters from the ground level . a boy standing on the ground observes the angle of elevation of the eagles as 45. after 15 seconds it's angle becomes 30. find it's speed in km/hr