Two lines are parallel, but are not the same line. Which of the following is not true of the lines? A. The slopes are the same.
B. The lines have no points in common. C. The y-intercepts are not the same. D. The lines must have a positive slope. Please select the best answer from the choices provided A B C D
Parallel lines must have the same slope. They <em>could</em> have points in common. If the y-intercepts were the same, taking into consideration the fact that the slopes have to be the same, it would be the same line and as the question directs, they are not. Parallel lines can have negative slope, as long as their slopes are equal.
