Question 1118460
"gradient", like slope?


Some uknown point (x,y) and a known point (1,7) on the line, and slope is  {{{-2}}}:



{{{(y-7)/(x-1)=-2}}}-----------There!  Worked-out.


You might want the equation in a different form.
{{{highlight_green(y-7=-2(x-1))}}}-----point-slope form,  after multiplying both sides by {{{x-1}}}.


{{{y-7=-2x+1}}}


{{{y=-2x+1+7}}}


{{{highlight(y=-2x+8)}}}------slope-intercept form