142 Part 2: Into the Unknown
The slope of the line through the points (4,-1) and (1,2) is
m^21
14
3
3
555 - 1
2 -
2 -
-6 -2 062
-2
2
4
6
-4
-6
-8-9 -7 -5 -4 -1-3 134 5 78 9
-8
-9
-1
-3
-5
-7
8
9
1
3
5
7
-10 10
-10
10
y
x
CHECK POINT
Find the slope of the line that connects the given points.
- (7,2) and (4,5)
- (6,-4) and (9,-6)
- (4,6) and (8,7)
19. (-5,5) and (5,-1)
20. (3,4) and (8,4)