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Question 3832: write the equation of the line below in slope intercept form
the line through (4, -1) with slope 3/5
Answer by longjonsilver(2297)   (Show Source):
You can put this solution on YOUR website! picture the curve of  . Here it is for you...
The domain is all the valid x-values
The range is all the valid y-values (for the specified x-values).
So, the possible x-values? Well, we can have ANY x-value. All work. So we say xeR meaning x belongs to the set of Real numbers.
Given the fact that we can have any x-value, what values of y do we get?, well we get anything greater or equal to zero...nothing negative, so the range is yeR, y>=0.
This says, again, that we can have number in the Real set (ie an integer, a fraction, irrational, rational) BUT it has to be greater or equal to zero.
OK?
jon.
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