Question

When are two lines said to be parallel?​

Answer 1

Note that two lines are parallel if their slopes are equal and they have different y-intercepts. In other words, perpendicular slopes are negative reciprocals of each other. Here is a quick review of the slope/intercept form of a line.

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Answer 2

Answer:

Note that two lines are parallel if their slopes are equal and they have different y-intercepts. In other words, perpendicular slopes are negative reciprocals of each other. Here is a quick review of the slope/intercept form of a line

Step-by-step explanation:

IN SHORT THE LINES SHOULD BE IN OPPOSITE OF EACH OTHER AND ALSO SHOULD BE OF SAME SIZE...... ☺