1. Lesson 3­3.notebook November 05, 2012
Assignment:
1­­>L3.3, pg. 176, #24­39 (all) ­ Due Wednesday (11/7)
2­­>L3.4, pg. 183­184, #10­27 (all) ­ Due Thursday (11/8)
3­­>Test signed??
4­­>Chapter 3 Test ­ Thursday (11/15)
1

2. Lesson 3­3.notebook November 05, 2012
Lesson 3.3 WarmUp:
Solve each equation. Show all steps!
1) 5y ­ 4 = 9y + 8
2) 4(3w ­ 2) = 8(2w + 3)
3) 4 = ­3u ­ (­7)
­8
Solve each equation. Then graph the solution on a number line.
4) |x ­ 6| = 11
5) |­4w + 2| = 14
2

3. Lesson 3­3.notebook November 05, 2012
Lesson 3.3:
*rate of change ­ a ratio that describes, on average, how much one
quantity changes with respect to a change in another quantity
*slope ­ the ratio of the change in the y­coordinate (rise) to the change in
the x­coordinate (run) as you move from one point to another
rise
run m = y 2 ­ y 1
x2 ­ x1
You can find the slope by either
graphing it or using this formula!
3

4. Lesson 3­3.notebook November 05, 2012
positive slope negative slope
Y Y
X X
Y
Y
slope of zero undefined slope
X
X
4

5. Lesson 3­3.notebook November 05, 2012
Lesson 3.3 examples:
Find the slope of the line that passes through each pair of points.
A) (5, 3), (6, 9)
B) (6, 3), (6, 7)
C) (­3, 1), (5, 1)
5

6. Lesson 3­3.notebook November 05, 2012
Find the value of r so the line that passes through each pair of points has
the given slope.
D) (1, 4), (­5, r), slope = 1/3
E) (r, ­6), (5, ­8), slope = ­8
6