Which statement is true for all parallel lines?

Question

• Parallel lines have a slop of zero.
• Parallel lines have slopes that are undefined.
• Parallel lines have the same slope.
• Parallel lines have slopes that are negative reciprocals of each other.

Answer 1

The true statement for all parallel lines is:

• Parallel lines have the same slope.

Parallel lines run in the same direction and will never intersect, which means their slopes are equal.