Question

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

a.)slopes are equal

b.)slopes are not equal

c.)none

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Answer 1

Answer:

(a) slopes are equal.

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 hope this will help you