Question 137141
how far apart are the y-intercepts of the line with the equation y=2x+3 and the line that goes through the point (4,2) 
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The y-intercetp of the line y=2x+3 is (0,3).
There are an infinite number of lines that go thru the point (4,2)
and each one has a different y-intercept.
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You must have more information so answer the question you posted.
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Cheers,
Stan H.