Question 90766
A way to look at this is to graph the equation: y = -4. The graph of this equation is a
horizontal line that crosses the y-axis at -4. This graph looks like:
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{{{graph(300,300,-20,20,-10,10,-4)}}}
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Note that the graph is a line that represents all the points that have a value of y equal
to -4. But the graph that you were asked to make is to show all the points that have a 
y value that is greater than -4. Suppose you shade in the entire graph ABOVE the line that
represents y = -4. Do not include the line itself.  The shading should go from minus 
infinity to plus infinity in the x-direction and starting at just above the graphed 
line for y = -4 it should go upward towards a y value approaching plus infinity.
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Note that any point in the shaded region (regardless of its x value) will have a y value
that is greater than -4.  So the graph you are looking for is the shaded region above the
graphed line for y = -4.
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Hope this makes sense to you.  It might help if you pick some (x, y) points in the shaded
region and you will see that regardless of the x value that you choose for such a point, 
the corresponding y value will always be greater than -4 as long as the point is in the
shaded region.
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For example, the point (-9, -3) is in the shaded region. The y value of this point is
-3 and that is greater than the y value -4 (because it is more positive than -4). 
And the point (0, 0) is in the shaded region.  Again the y value of this point is zero,
and this is greater than -4. And so on ...