Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 perpendicular lines part Make a new day in Notability called "Sept 18, 19 Slopes of parallel and Perpendicular lines Download the notes, warm-up and homework into Notability E-mail me your homework on slopes Agenda 1) Warm-up quiz on Socrative 2) Go over homework and warm-up 3) Notes - Slopes of parallel and perpendicular lines 4) Guided practice 5) H.W. w.s. 3.4 Practice A # 1-15, 22-27 all Sept 18-19 Slopes of parallel and perpendicular lines.notebook B D A E September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook D A D September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Slopes of parallel and perpendicular lines Parallel Lines - Coplanar lines that do not intersect Perpendicular Lines - Coplanar lines that intersect to form right angles Sept 18-19 Slopes of parallel and perpendicular lines.notebook Below September 18, 2017 Lets find the slope of these 3 lines b II c, a b, a c a b 90 ° c 110 120 130 140 100 150 90 70 80 80 90 160 40 30 170 10 110 35° 60 50 20 100 70 60 180 0 120 50 130 40 140 30 150 160 20 170 10 180 0 What do you notice about the slopes of the parallel lines? ________ What about the slopes of the perpendicular lines? ______________ 90 ° Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook Do you remember what a rectangle is A rectangle is a polygon that has 4 right angles. September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook Is the following shape a rectangle? D C A B September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook Slope of Line a 1/2 -3 -4/3 8 0 undefined Slope of line parallel to Line a September 18, 2017 Slope of line perpendicular to line a Sept 18-19 Slopes of parallel and perpendicular lines.notebook Question: One side of a rectangle has a slope of 2/3. What are the slopes of the other 3 sides? September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook Determine if the lines are parallel, perpendicular or neither. September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook September 18, 2017 Sept 18-19 Slopes of parallel and perpendicular lines.notebook Homework: w.s. 3.4 Practice A # 1- 15, 22-27 all September 18, 2017