1. 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, all, 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)?

2. 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

3. 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
(+,-)

4. 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

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

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

7. 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

8. 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

9. 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

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

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

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

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

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

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

16. Homework
Text p. 479, #8-18 evens, all, evens & 44