Answer:
Slope is -2/3
Explanation:
What you do is use the formula y2-y1/x2-x1. 
y1 and y2 are at the end of the parenthesis so y1 is 5 and y2 is -1. 
x1 and x2 are at the beginning of the parenthesis so x1 is -3 and x2 is 6. 
Then you put it into the formula:
-1-5/6-(-3)
This then equals -2/3. 
-2/3 is the answer.