Question

Find the slope of the line passing through the points (-1,-9) and (2,11).

Answer 1

m(slope) = (y2-y1)/(x2-x1)
suppose (-1,-9) is the (x1,y1) and
(2,11) is the (x2,y2).
then just plug the values of those x and y

m = (11-(-9)) / (2-(-1)) = 20/3

Answer 2

2,11
1,9
----
3,20 = 20/3

Answer 3

Ohh, ok thanks.

Answer 4

So its 6.66?

Answer 5

yes, but usually 6.66666... is rounded to 6.67

Answer 6

the exact value = 20/3 .... but if you want to do a decimal approximation thats good