Question 924328
The meaning of slope is vertical change divided by horizontal change.  Using the formula for slope as described, evaluate {{{m=(8-(-1))/(-2-(-4))}}}.


What is the point-slope form equation for a line?
This comes from the formula for slope.
Unknown point (x,y);
Known point (u,v) on the line;
Slope is {{{m=(y-v)/(x-u)}}}.  Multiply both sides by the denominator of the right side,
{{{(x-u)m=y-v}}}
{{{highlight_green(y-v=m(x-u))}}}, the point-slope form of a line.


You have two known, given points for the line that you want to find.


You should have little or no trouble continuing and finishing the question.