Find the slope of the line that passes threw (3,11) and (8,9)

Step-by-step explanation:

First thing you do is fine gradient. To do this use the formula:

Then use this formula to find equation of the line:

y = mx + c where m is the gradient

Then Substitute in a point and the calculated gradient value to get c

11 = -0.4 x 3 + c

c = 12.2

Therefore the equation of the line is:

y = -0.4x + 12.2