Question 766797
{{{drawing(400,400,-5,5,-5,5,red(locate(-4.6,4.5,"<--line_m")),
locate(-2.3,3.8,"line_n-->"), red(locate(-5,-2.8,"negative_y_intercept--->")),circle(2,0,.6),locate(5,0,x),locate(0.1,3.2,"<--positive_y_intercept"),
locate(2,.45,"?"), locate(0.05,5,y),
red(line(-10,12,12,-21)), green(line(-10,18,10,-12)),
line(-10,0,10,0), line(0,-10,0,10) )}}}
<pre>
The red line (line m) slants downhill to the right, so its
slope is negative.  It has a negative y-intercept because
it crosses the y-axis below the origin.  The green
line (line n) is parallel to line m and has a positive 
y-intercept because it crosses the y-axis above the origin.
Line n crosses the x-axis to the right of the origin at the 
point circled and marked with a question mark.
Since it is to the right of the origin, 

<b><u>the x-intercept of n must be POSITIVE.</b></u>

Edwin</pre>