Here, we will use the slope formula.
Slope formula can be read as the second y minus the
first y over the second x minus the first x.
So for this problem, the second y minus the first y would be 5 - 6
and the second x minus the first x would be 9 - 10.
5 - 6 over 9 - 10 simplifies to -1/-1 which reduces to 1.
Always remember to reduce if possible as your last step.
