Idon't get it i hate it when it's the letters

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.