Answer:
6/7 ; 1/10 ; -3/2
Explanation:
The formula for slope is: y1-y2/x1-x2
The points given are: (x coordinate, y coordinate)
In the formula:
y1 is the y coordinate of the first point
y2 is the y coordinate of the second point
x1 is the x coordinate of the first point
x2 is the x coordinate of the second point
This said, we can plug our points in for each example.
First one:
4.9-(-1.1)/8-1
4.9+1.1/7
6/7
Second one:
8-7.5/9.5-4.5
0.5/5
Multiply both numerator and denominator by 2
1/10
Third one:
1.7-5/1-(-1.2)
-3.3/2.2
Divide both numerator and denominator by 1.1
-3/2