Answer:
The slope of this line (m) is 5
Explanation:
Slope is the change in y over the change in x.
The y values are 80 and 50 (6,50) (12,80) You find the change by subtracting these values
80 -50 = 30
The x values are 12 and 6 (6,50) (12,80) You find he change by subtracting these values.
12 - 6 = 6
this reduces to 5