Geometry, please help

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

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)