1. Bellwork Solve
1.) p = 2l + 2w for w
2.) a = 1/2bh for b
3.) a = P + Prt for P

2. p - 2l = 2l - 2l + 2w p - 2l = 2w (p-2l)/2 = 2w/2 (p - 2l)/2 = w
Bellwork Solve
1.) p = 2l + 2w for w
p - 2l = 2l - 2l + 2w
p - 2l = 2w
(p-2l)/2 = 2w/2
(p - 2l)/2 = w

3. Bellwork Solve
2.) a = 1/2bh for b
(2)a = (2)1/2bh
2a = bh
2a/h = bh/h
2a/h = b

4. a/(1+rt) = P(1+ rt)/(1+ rt) a/(1 + rt) = P
Bellwork Solve
3.) a = P + Prt for P
a = P(1 + rt)
Distributive Property
a/(1+rt) = P(1+ rt)/(1+ rt)
a/(1 + rt) = P

5. Ordered Pairs
An ordered pair comes in the form (x,y) with x always first and y always second
The x value refers to the numbers on the x axis
The y value refers to the numbers on the y axis

6. Coordinate Plane The coordinate plane consists of 4 quadrants
Starting in the upper right hand corner with quadrant 1 and moving counterclockwise to quadrant numbers 2, 3, & 4.
There are 7 different places in the coordinate plane. What are they?

7. Coordinate Plane Y X Quadrant II Quadrant I Origin Quadrant III
Quadrant IV

8. Plotting Points
To plot a point on the x,y axis, always start at the origin.
Using the x value, move left or right on the x axis depending on whether the x value is positive or negative.
Using the y value, move up or down on the y axis depending on whether the y value is positive or negative.

9. More on plotting points
For every 1 point on a graph it takes two numbers to identify the correct location.
Think of a game of Bingo as it needs both a letter and a number to identify the correct square.

10. Plot the Point (2,3) Y
up 3 X
over 2
(2,3)

11. Plot the Point (-2,-1) Y X
(-2, -1)

12. How is each Pt. Different?Y
(-2,2)
(2,3) X
(3,-1)
(-2,-1)

13. Scatter Plots
Example 1 page 160
Example 2 page 161

14. Classwork
Do worksheet 3.7
Homework (1-5) together
pg 163 (6-19)