SOLUTION: A line is graphed in the xy-plane. If the line has a positive slope and a negative y-intercept, why (-3,3) cannot lie on the line?

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Question 1090312: A line is graphed in the xy-plane. If the line has a positive slope and a negative y-intercept, why (-3,3) cannot lie on the line?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39621) About Me  (Show Source):
Answer by ikleyn(52817) About Me  (Show Source):
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If the line has a negative y-intercept, it implies that the corresponding linear function is negative at x = 0.


If, in addition, the line has positive slope, it means that the values of the corresponding linear function 
are even lesser in the negative domain of x.


Meanwhile, the point (-3,3) has negative component x= -3, but positive y= 3.
CONTRADICTION.