Question 1104535
This type of question is too frequent.  Look for other examples already solved.


Equation for slope with unknown (x,y) and known (p,v):
{{{m=(y-v)/(x-p)}}}


Multiply both sides by {{{x-p}}}:
{{{m(x-p)=y-v}}}

{{{highlight_green(y-v=m(x-p))}}}, format for the point-slope equation.


{{{y=mx-mp+v}}}

{{{highlight_green(y=mx+v-mp)}}}, corresponds to the slope-intercept form and m is slope, and vertical axis intercept is  {{{v-mp}}}.