1. Objective- To find the slope of a line given
two points.
Graph y = 2x - 3 y x y -3 -2 -1 1 2 3 -9 -7 -5 -3 -1 1 3 x
y = 2x - 3

2. Objective- To find the slope of a line given
two points.
Slope of a line y
vertical change
Slope (m) =
horizontal change +1
rise
Slope (m) = +2
run y
Slope (m) = x -2 x -4 +2
Slope (m) = = -2 -4
y-intercept = -3 +1
m = 2
y = 2x - 3

3. y x Find the slope of the line below. Slope (m) = +1 Slope (m) = +3 +3
rise
Slope (m) =
run +1
Slope (m) = +3 x +3 1 m = 3 +1

4. y x Find the slope of the line below. +2 Slope (m) = +3 Slope (m) = +3
rise +2
Slope (m) =
run +3
Slope (m) = +3 +2 x 3 m = 2

5. y x Find the slope of the line below. -1 -1 -1 Slope (m) = Slope (m) =
rise
Slope (m) =
run -1
Slope (m) -1 = +4 x +4 -1 m = 4

6. y x Find the slope of the line below. -4 -4 Slope (m) = Slope (m) = +2
rise
Slope (m) =
run -4
Slope (m) = +2 x -4
= -2 m +2

7. y x Find the slope of the line below. Slope (m) = +5 +2 Slope (m) = +2
rise
Slope (m) =
run +5 +2
Slope (m) = +2 +5 x 2 m = 5

8. y x Find the slope of the line below. -4 -4 Slope (m) = Slope (m) = +1
rise
Slope (m) =
run -4
Slope (m) = -4 +1 x
= -4 m +1

9. y -3 - 2 -2 - 1 -5 -3 Algebraic Method to Find Slope Given Two Points
rise
Slope (m) =
run y
Slope (m) 1 = x
(1,2)
y2- y1
Slope (m) =
x2- x1
-3 - 2
Slope (m) =
-2 - 1 -5
Slope (m) = -3 2
(-2,-3) 5
m = 3

10. Algebraic Method to Find Slope Given Two Points1 2
Find the slope between (-1,3) and (4,7).
y2- y1 y
Slope (m) = = x
x2- x1
7 - 3
Slope (m) =
4 - -1 4
Slope (m) = 5 4
m = 5

11. -1 - 6 -7 -2 Algebraic Method to Find Slope Given Two Points
Find the slope between (6,5) and (-1,7).
y2- y1
m =
x2- x1
7 - 5 m =
-1 - 6 2 m = -7 -2
m = 7

12. -8 - 4 -12 -1 Algebraic Method to Find Slope Given Two Points
Find the slope between (-8,7) and (4,1).
y2- y1
m =
x2- x1
7 - 1 m =
-8 - 4 6 m =
-12 -1
m = 2