Question

given two points M and N on the coordinate plane, find the slope of line MN, and state the slope of the line perpendicular to line MN: M(9,6) N(1,4)

Answer 1

The answer of the slope is 4 :)

here's the solution:

\[Slope formula: x _{2}-x _{1}/y _{2}-y _{1} \]

Answer 2

Then Substitute:

\[\frac{ 1-9 }{ 4-6 } = \frac{ -8 }{ -2 }= 4\] that's how i get the 4 :)