Question 72755
You don't really need to do anything different to get this graph.  All you need to have is two
points to establish the graph.  You can get these points by choosing convenient or easy to work
with values for x and then calculating the corresponding values for y.
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For example:
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You are given the equation {{{-3x=2y}}}.  Suppose we let x = 0.  The equation becomes:
{{{-3*(0) = 2*y}}} which reduces to {{{0 = 2y}}} and dividing both sides by 2 results in:
{{{0 = y}}}. So we have one point on the graph: x = 0 and y = 0 or (0,0).
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Choose another value for x: let x = +4.  Substituting that value into the original equation
results in {{{ -3*4 = 2y }}} which after the multiplication on the left side becomes
{{{-12 = 2y}}}.  Then dividing both sides by 2 tells us that {{{-6 = y}}}. So the point
(+4, -6) is also on the graph.  Plot these two points on the graph and draw a line through
them.  That is the graph.
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Note that it is always a good idea to work out a third point to see if it also falls on 
the graph.  If it does, then you are probably correct in your graph.  But if it does not 
line up, then one of your points is incorrect.
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When you are done your graph should look like this one:
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{{{graph(500,500,-20,20,-20,20, (3/2)*x)}}}
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Hope this method saves you some work and helps you to gain some insight into graphing
techniques.