Question

Find the slope of the line that passes through the pair of points (2,6) , (7,0)

Answer 1

Slope is defined as the change in y-coordinate over the change in x, so if you find the change then you can find the slope.
$\frac{change~in~y}{change ~in~x} =\frac{0-6}{7-2}=\frac{-6}{5}$
Thus, your slope is -6/5.