Question

Two non-vertical lines are parallel if and only if their ​

Answer 1

Answer:

Two non-vertical lines are parallel if and only if they are horizontal lines

Answer 2

Step-by-step explanation:

Two nonvertical lines are parallel if and only if their slopes are equal and they have different y-intercepts. ... Find the slope and y-intercept of each line by writing their equations in slope intercept form. If the slopes are the same but the y-intercept are different, then the lines are parallel.