Warm Up Find the values of y by substituting x = 2, 3, 10 1. Y = 20x + 4 2. Y = 9(x+3) Today’s Objective SWBAT use the midpoint formula in order to find the midpoint of a segment. Homework: Pg 61 #9-19 Odd (15-19 odd just find the midpoint) To identify basic shapes and figures in Geometry Warm Up √ Homework: Pg 61 #9-19 Odd Anticipatory Set Vocabulary Midpoint Formula Distance Formula Closure Homework To identify basic shapes and figures in Geometry Warm Up √ Homework: Pg 61 #9-19 Odd√ Anticipatory Set Vocabulary Midpoint Formula Distance Formula Closure Anticipatory Set Fold a segment bisector activity Draw AB on a piece of paper, fold the paper so Point B is on top of Point A The point where the crease intersects the line is the mid-point Label this point M What do we notice when we compare AM to MB? To identify basic shapes and figures in Geometry Warm Up √ Homework: Pg 61 #9-19 Odd√ Anticipatory Set √ Vocabulary Midpoint Formula Distance Formula Closure Vocabulary 1. Midpoint 2. Segment Bisector Midpoint The point that divides a segment into 2 congruent segments. E F These tick marks signify that both of these segments are congruent G Segment Bisector A point, ray, line, line segment, or plane, that intersects the segment at its midpoint. E E F G E G G E G To identify basic shapes and figures in Geometry Warm Up √ Homework: Pg 61 #9-19 Odd√ Anticipatory Set √ Vocabulary √ Midpoint Formula Distance Formula Closure Midpoint Formula The coordinates of the midpoint of a segment are the averages of the xcoordinates and the y-coordinates X 1 X 2 Y1 Y 2 , 2 2 Find the Midpoint The endpoints of RS are R(1, -3) and S(4,2). Find the midpoint M of RS. The midpoint of JK is M(2,1). One endpoint is J(1,4). Find the endpoint K. To identify basic shapes and figures in Geometry Warm Up √ Homework: Pg 61 #9-19 Odd√ Anticipatory Set √ Vocabulary √ Midpoint Formula √ Distance Formula Closure Distance Formula The distance formula for finding the length between 2 points is: ( X 2 X 1 ) (Y 2 Y1 ) 2 2 Find the distance between 2 points, round to the nearest tenth of a unit P(1,2) and Q(5,4) Q(-3,5) and R(2,3) Let’s Review the Vocabulary M is the midpoint of VW. Find the length of VM. V 4x-1 M 3x+3 W