Parallel Lines Test #4

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In this section, we learn how to determine if we have parallel or perpendicular lines. Parallel lines are any two lines on a plane that will never intersect.
They will have the same slope, but different y-intercepts. To determine if we have parallel lines, place each line in slope-intercept form and inspect the
slope and y-intercept. If the two lines have the same slope, but a different y-intercept, they are parallel lines. Perpendicular lines will intersect at a
90 degree angle. When we have perpendicular lines, they have a property such that the product of their slopes is (-1). To determine if we have perpendicular
lines, place each line in slope-intercept form and copy the slope in each case. We then look to see if the product of the two slopes is (-1). If the product
is (-1), we have perpendicular lines.

Parallel Lines Resources:

Videos:

Khan Academy - Video
Khan Academy - Video
Virtual Nerd - Video
Text Lessons:

Khan Academy - Text Lesson
Math Planet - Text Lesson
Math Planet - Text Lesson
Worksheets:

Math-Aids - Worksheet
Math Worksheets 4 Kids - Worksheet
Khan Academy - Practice
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