Question 323859
Parallel lines have identical slopes. 
THe slope of the first line is {{{m=2}}}
Use the slope-intercept form of a line,
{{{y=mx+b}}} and use the point(1,3) to solve for b.
{{{3=2(1)+b}}}
{{{b=1}}}
{{{highlight(y=2x+1)}}}
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{{{drawing(300,300,-5,5,-5,5,grid(1),circle(1,3,0.2),graph(300,300,-5,5,-5,5,2x-3,2x+1))}}}