Question 67721
I need help with this problem:
-3(5x-y)>0
-15x+3y>0
3y>15x
y>5x
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Graph the border line which separates y>5x from y<5x
Graph y=5x as follows:
{{{graph(300,200,-10,10,-10,10,5x)}}}
The half-plane above the border is the graph you want;
shade in that half-plane.
COMMENT: The positive y-axis, for example, is in the half
plane that is above the border.  You can check if you have
the proper side by taking a "test point" such as (0,10)
Find the point.  If it satisfies y>5x that point and that
entire side is the side you want.
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Cheers,
Stan H.