Question 366009
Use the slope-intercept form of a line, {{{y-yp=m(x-xp)}}}, and then convert to slope-intercept form,{{{y=mx+b}}}.
{{{y-(-10)=-2(x-6)}}}
{{{y+10=-2x+12}}}
{{{highlight(y=-2x+2)}}}
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The y-intercept is {{{2}}}.
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{{{drawing(300,300,-10,10,-15,5,grid(1),circle(6,-10,0.3),graph(300,300,-10,10,-15,5,0,-2x+2))}}}