Question 72470
a) any line parallel to the y axis will be in the form of x=... (notice there's no y value). Since the point contains x=-3, the line's equation is x=-3. 
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b)First solve for y
{{{cross(2x-2x)-9y=-1-2x}}}Subtract 2x from both sides
{{{-9y=-1-2x}}}divide both sides by -9
{{{y=1/9+2/9x}}} So the slope is 2/9 and the y-intercept is 1/9. Parallel lines have the same slope, so the slope of our unknown equation is m=1/9. Since the line is going through the origin (0,0) our y-intercept will be zero (b=0). So our equation is 
{{{y=1/9x+0}}} or
{{{y=1/9x}}}