Posted by **Eric** on Friday, March 29, 2013 at 9:58pm.

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 x-axis.

2. The line passes through (0, 0).

3. The line stays above the x-axis at all times.

4. The line rises from the lower left to the upper right.

5. The line is parallel to the y-axis.

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