Expressions and Equations, Functions

 Parallel lines: lines that are in the same plane but do not intersect  Slopes of parallel lines: Two nonvertical lines are parallel if they have the same slope but are not the same line.  Any two vertical lines are parallel.

 Perpendicular Lines: two lines that intersect at right angles  Slopes of Perpendicular Lines: Any two lines are perpendicular if their slopes are negative reciprocals of each other  Horizontal lines are perpendicular to vertical lines (and vice versa)

L M N

Use the slope of the line segments to show that ABC is a right triangle. A B C

 Be kind.  If the paper in front of you has no work shown, return it to its owner.  If the paper in front of you is not in pencil or black ink, return it to its owner.  If the paper in front of you is not complete, return it to its owner.  Remember you are filling out the score sheet for the person that you are correcting.  Be sure to write “C.B. ____________” with your name on the paper you graded and on the score sheet.

 1 st and 2 nd hour: Lesson 65 #8,9,11-15 (ignore method on 13-15), 17, 18, Practice a-e  3 rd hour: Lesson 65 #13-15 (ignore method), 21-26, 30, Practice a-e