Question 871503
You need two points to plot a line.
Choose two x values, calculate y.
Plot the (x,y) pair.
Connect them with a straight line.
{{{x=0}}},{{{y=-2(0)-5=0-5=-5}}}(0,-5)
{{{x=-3}}},{{{y=-2(-3)-5=6-5=1}}}(-3,1)
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{{{drawing(300,300,-6,6,-6,6,grid(1),circle(0,-5,0.3),circle(-3,1,0.3))}}}
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Now the straight line and you're done.
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{{{drawing(300,300,-6,6,-6,6,grid(1),circle(0,-5,0.3),circle(-3,1,0.3),graph(300,300,-6,6,-6,6,-2x-5)))}}}