is the line for the equation y=-8 horizontal or vertical? what is the slope of this line? select the best answer
Athe line is horizontal. the slope is undefined
Bthe line is horizontal. the slope is 0
Cthe line is vertical. the slope is undefined
Dthe line vertical. the slope is 0
Athe line is horizontal. the slope is undefined
Bthe line is horizontal. the slope is 0
Cthe line is vertical. the slope is undefined
Dthe line vertical. the slope is 0