Key points: parallel lines have the same slope and perpendicular lines have opposite reciprocal slopes.
Use the video link below for help/practice
https://www.youtube.com/watch?v=Rew54K6mYUo
https://www.youtube.com/watch?v=Mbd-wT0aMQ0
Music Video
https://www.youtube.com/watch?v=EmincNsoFnw
We completed the first page of our notes on writing an equation of a line in slope-intercept form.
HW: Complete the 2 slope worksheets if you have not yet done so.