Find slope from two points

1. -
2
1
-1
2
2
1
DO NOW -Match the slope to the graph 11/17

2. -
2
1
-12
2
1
Solution

3. Agenda
11/17
Do Now
Homework Check
More on slope
Homework 9 p. 287
# 14 - 20 evens, 22 - 26 all, 33 - 39 all SHOW WORK

4. HW CHECK

6. Worst Best
Order these businesses by their stock performance last month
y
x
y
x
y
x
y
x

7. Negative slope Positive slope
Positive and negative slope
y
x
y
x
y
x
y
x

11. Find the slope of the line that passes through (-3,-4) and (-2,4)
Slope = 8

14. To find the slope without graphing:
Example: Find the slope of a line that passes through
the points A(-2, 1) and B(5, 7)
Call point A point 1 and point B point 2
7 - 1 6 6
5 - (-2) 7 7
The slope of the line is

21. A line that slants upward from left to right has a positive slope.
A line that slants downward from left to right has a negative
slope.
A horizontal line has a slope of 0.
A vertical line has an undefined slope.
NOTES
11/16

22. (2, 4) (3 , 7) 3
(5, 3) (5 , 8) undefined
(4, 10) (2, 5) 5/2
(6, 2) (4, 2) 0
(7, 3) (13, -1) -2/3
(7, 5) (8, 3) -2
slope = y2 - y1
x2 - x1
Find the slope between these two points.