The slope between (2,10) and (9,1) is -9/7.
We have given that,
(x1,y1)=(2,10) and(x2,y2)= (9,1).
What is the formula of the slope?
Slope=rise/run
Sope=y2-y1/x2-x1
use the given values in above formula so we get,
1-10/9-2=-9/7
So, the slope is -9/7.
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