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faust18 [17]
3 years ago
8

Wich expression can be used to find the slope of a line containing the points (-3,2) and (7,-1)

Mathematics
1 answer:
docker41 [41]3 years ago
6 0
A(x_1;\ y_1);\ B(x_2;\ y_2)\\\\\text{The slope:}\ m=\dfrac{y_2-y_1}{x_2-x_1}


\text{We have:}\\(-3;\ 2)\to\ x_1=-3;\ y_1=2\\(7;\ -1)\to x_2=7;\ y_2=-1

\text{substitute}\\\\m=\dfrac{-1-2}{7-(-3)}=\dfrac{-3}{10}=-\dfrac{3}{10}
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