Linear Relationships, SM-Bank 050 MC

Which of the following is not true of the lines on the number plane below?

1. \(\text{They have the same }y\text{-intercept}\).
2. \(\text{They both pass through the point}\ (0,-1)\).
3. \(\text{They constant value in the equations of both lines is }-1\).
4. \(\text{They both pass through the point}\ (-1,0)\).