SOLUTION: If two points on a line have positive coordinates, is the slope necessarily positive? Explain .

Question 682443: If two points on a line have positive coordinates, is the slope necessarily positive? Explain .
Answer by MathLover1(20855) (Show Source): You can put this solution on YOUR website!
No, because you could have two points in the first quadrant that are positive and the line could still be negative.
example:
has negative slope
find two points on a line that have positive coordinates:
if => ; the point is (,)
if => ; the point is (,)

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