What is the mean absolute deviation of the following 8,9,9,,10,10,10,11,11,12,12,-2,13,1 3,13,13,14,14,16,17,17,18,18,18,18, 20

-2

Step-by-step explanation:

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.