algebra
posted by Eric .
In a coordinate plane, the points (2,4) and (3,1) are on a line.
Which of the following must be true?
1. The line crosses the xaxis.
2. The line passes through (0, 0).
3. The line stays above the xaxis at all times.
4. The line rises from the lower left to the upper right.
5. The line is parallel to the yaxis.

Since the y of the first point is above the xaxis and the y of the second point is below, the line must surely cross the xaxis
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