Ue Structure Without computing, how can you tell by looking at the ordered pair that a line will be horizontal or vertical?

If the , 1 of 3. Select Choice
are the ame, the lope will be zero. When the lope i zero, the line , 2 of 3. Select Choice
, o it will be horizontal. If the , 3 of 3. Select Choice
are the ame, the line will be vertical