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Do Now 5/18/11 Take out HW from last night. Copy HW in your planner. Punchline worksheets #115 & 116. Copy HW in your planner. Text p. 479, #8-18 evens, 19-22 all, 28-32 evens & 44 Quiz sections 9.3 & 9.5 Friday In your journal, find the following regarding points on a coordinate plane. What is the distance between the two points (2, 3) & (2, 7)? What is the distance between the two points (2, 3) & (-5, 3)? What is the distance between the two points (2, 7) & (-5, 3)?

Homework Punchline worksheets 115 & 116 Did You Hear About… THE MATH STUDENT WHO WALKED AROUND A CITY BLOCK BY TAKING A SQUARE ROUTE? Where Does the Scent of a Lady’s Perfume Go? NO ONE NOSE

Coordinate Plane y-axis Quadrant II (-,+) Quadrant I (+,+) Origin Remember this??? Coordinate Plane y-axis Quadrant II (-,+) Quadrant I (+,+) Origin (0,0) x-axis Quadrant III (-,-) Quadrant IV (+,-)

Plotting Points (2,4) (-3,4) (2,-3) (-6,-4) y-axis x-axis Remember this??? Plotting Points ordered pair (2,4) y-axis (-3,4) 5 C 4 A 3 (2,-3) 2 1 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 x-axis -1 (-6,-4) -2 -3 B D -4 -5

Describe the Location of Each Point. Remember this??? Describe the Location of Each Point. y-axis Quadrant 2 5 Quadrant 1 4 3 C x-axis 2 A 1 -6 -5 F -4 -3 -2 -1 1 2 3 4 5 6 x-axis -1 Quadrant 4 -2 Quadrant 3 E -3 D -4 B -5 y-axis

Objective SWBAT find the distance between two points SWBAT find the midpoint of a line segment

What is the distance between points A and B? y-axis (-3,4) (2,4) 5 4 A C 3 2 7 units 1 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 x-axis -1 -2 -3 B (2,-3) -4 -5

What is the distance between points C and A? 5 units y-axis (-3,4) (2,4) 5 4 A C 3 2 1 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 x-axis -1 -2 -3 B (2,-3) -4 -5

What is the distance between points C and B? y-axis (-3,4) (2,4) 5 4 A C 3 2 1 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 x-axis -1 -2 -3 B (2,-3) -4 -5

Section 9.5 “The Distance and Midpoint Formulas” Distance Formula y To find the distance between two points x

Find the distance between (6,3) and (5,7)

Find the distance between (-1,3) and (5,2)

Section 9.5 “The Distance and Midpoint Formulas” y Midpoint Formula The midpoint (middle point) between two points can be found by: x

Find the midpoint of a line segment with endpoints (-1,-2) and (3,-4)

Find the midpoint of a line segment with endpoints (6,-3) and (4,-7)

Homework Text p. 479, #8-18 evens, 19-22 all, 28-32 evens & 44