1. Slope and similar triangles

2. a rise run 4 2 2 1 6 2 b c rise run 6 3 2 1 3 4 1 d e be de ac bc 4 2
Write a proportion to compare the rise to the run for each of the similar slope triangles Y a
Triangle # 1
rise
run 4 2 2 1 6 2 b
Triangle # 2 c
rise
run 6 3 2 1 3 X 4 1 d
proportion e be de ac bc 4 2 6 3 2 1 2 = = =

3. Pick 2 points on the line and find the slopeY
(x2, y2)
(12,8)
rise
run
Slope formula
y2 – y1
x2 – x1 1 2
(8,6)
(x2, y2)
(x1, y1)
(2,3)
3 – 2
2 - 0 1 2
Pick 2 different points on the line and find the slope of those points
(0,2)
(x1, y1) X
rise
run
Slope formula
y2 – y1
x2 – x1 2 4 1 2
8 – 6
12 - 8 2 4 1 2

4. Pages 191 – – 6 all

5. a rise 2 run b c rise run 1 d e Triangle # 1 Triangle # 2 proportion
Write a proportion to compare the rise to the run for each of the similar slope triangles Y a
Triangle # 1
rise
run 2 b
Triangle # 2 c
rise
run X 1 d
proportion e = = =

6. Pick 2 points on the line and find the slope Y
rise
run
Slope formula
Pick 2 different points on the line and find the slope of those points X
rise
run
Slope formula