1. slope - describes the steepness of a line=
rise
run

2. y x rise run rise slope run = - how much does the line go up or down?
What is the change in y?
- how much does the
line go right? y x
What is the change in x?

3. SLOPE MAN!!! U Positive Slope Negative Slope Undefined Slope NO Slope
Zero Slope

4. Find the slope. rise slope run rise run rise rise run run 1 3 +4 -3 +2=
rise
run +6 -3 +4 +2 +2
rise
run = = 1 3
rise
run = +4 -3 +2 = -3 2 +2 +6
rise
run =
UNDEFINED
No SLOPE

5. You don’t need a graph to find the slope!
Check it! •
(x1, y1)
(x2, y2)
(4,0) (1,5)
rise = -5
0 - 5 =
run = 3
4 - 1
- 5 = 3

6. You don’t need a graph to find the slope!
(x1, y1)
(x2, y2)
(x1, y1)
(x2, y2)
(7,-1) (9,-1)
(-6,-4) (-8,10)
-1 - (-1) =
-4 - (10) =
7 - 9
-6 - (-8) = 2
-14 = 2 = -7 =

7. To Find Slope .... y x rise slope run change in y slope change in x =
How to find the y-intercept:
- the point where the line crosses the y-axis
- from an ordered pair, look for when x is 0.
ex. (0,4) y-intercept is 4