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15 parallel and perpendicular.notebook
1
October 23, 2016
Dec 73:53 PM
Parallel & Perpendicular LinesAgenda
Reminders
Essential Question
Warm-UpNotes
HW #1-5
HW 1.9 Due MondayQuiz 10/25
How do I identify two parallel or two
perpendicular lines? As measured by getting 80% on your homework correct.
Wednesday Warm-Up
Graph y=2, y=-2, and x=3. Compare and contrast what do the lines have in common and don't have in common.
Oct 219:57 AM
15 parallel and perpendicular.notebook
2
October 23, 2016
Oct 219:57 AM
Dec 73:53 PM
Fold your foldable in half so it looks like this:
Parallel & Perpendicular LinesEssential Question
How do I identify two parallel or two perpendicular lines? As measured by getting 80% on your homework correct.
15 parallel and perpendicular.notebook
3
October 23, 2016
Dec 73:53 PM
If two lines have the SAME SLOPE, then they
are parallel.
If two lines have the FLIPPIN' OPPOSITE SLOPES, then they are
perpendicular.
1.Write an equation for a line that is parallel to the line 2x + 3y = 6 and passes through the point (0, 4).
2. Write an equation for a line that passes through the point (1,6) and is parallel to the line y = 4.
3. Write an equation for a line that is perpendicular to the line y = 4x + 8 that passes through the point (2,1)
4. Write an equation for a line that passes through the point (1,6) and is perpendicular to the line y = 4.
Parallel & Perpendicular LinesEssential Question
How do I identify two parallel or two perpendicular lines? As measured by getting 80% on your homework correct.
Dec 73:53 PM
Parallel & Perpendicular LinesEssential Question
How do I identify two parallel or two perpendicular lines? As measured by getting 80% on your homework correct.
*Turn to the back of the foldable.
15 parallel and perpendicular.notebook
4
October 23, 2016
Dec 73:53 PM
General Help: Parallel Lines have the SAME slope.Perpendicular Lines have FLIPPIN'
OPPOSITE slopes.
1. Find 2 pretty points and count your RISE & RUN. On part C: the point (0,2) is the yintercept...y=mx+b!2. Put your points in a table! Or use slope formula.
3. Line AD is parallel to Line BC. Check their slopes to prove it!
4. Remember: ignore the first point (it is a typo). Your slope should be 3/1.C. FLIP the numbers and CHANGE the signs!
5. Remember HOY VUX!What kind of line would be parallel? What type would be perpendicular?
x y6 43 2
y=3
Parallel & Perpendicular Lines