Post on 27-Mar-2015
transcript
Finding the Slope of a LineFrom Two Points
Given the points:(3, 4) and (2, 6)
Find the slope of the line.
y2 – y1
x2 – x1
=
x1, y1 x2, y2
6 4
2 3
– –
5
-5
-5
5
= =2
-1-2
Problem 1
Given the points:(3, 0) and (6, 2)
Find the slope of the line.
y2 – y1
x2 – x1
=
x1, y1 x2, y2
2 (0)
6 (3)
– –
5
-5
-5
5
=2
3
Problem 2
Given the points:(0, 8) and (-3, 10)
Find the slope of the line.
y2 – y1
x2 – x1
=
x1, y1 x2, y2
10 (8)
-3 (0)
– –
5
-5
-3
5
=2
-3
Problem 3
Given the points:(0, 9) and (4, 7)
Find the slope of the line.
y2 – y1
x2 – x1
=
x1, y1 x2, y2
7 (9)
4 (0)
– –
5
-5-2
5
= =-2
4-½
Problem 4
Given the points:(3, -2) and (1, 2)
Find the slope of the line.
y2 – y1
x2 – x1
=
x1, y1 x2, y2
2 (-2)
1 (3)
– –
5
-5
-5
5
= =4
-2-2
Problem 5
Given the points:(-2, 3) and (3, -6)
Find the slope of the line.
y2 – y1
x2 – x1
=
x1, y1 x2, y2
-6 (3)
3 (-2)
– –
5
-5
-5
5
=-9
5
Problem 6
Given the points:(-1, 0) and (-3, -6)
Find the slope of the line.
y2 – y1
x2 – x1
=
x1, y1 x2, y2
-6 (0)
-3 (-1)
– –
3
-5
-5
5
= =-6
-23
Problem 7
Given the points:(0, 0) and (-4, -8)
Find the slope of the line.
y2 – y1
x2 – x1
=
x1 , y1 x2, y2
-8 (0)
-4 (0)
– –
2
-5
-5
= =-8
-42
Problem 8
5
Slope of Vertical and Horizontal
Lines
y2 – y1
x2 – x1
= -4 (-4)
-3 (5)
– –
2
-4
-5
= =0
-8zero
Problem 9
5
Given the points:(5, -4) and (-3, -4)
x1, y1x2, y2
Given the points:(-4, -3) and (-4, 2)
y2 – y1
x2 – x1
=2 (-3)
-4 (-4)
– –
2
-4
-5
= =5
0Undefined
Problem 10
5
x1, y1x2, y2