Find an equation for the line with the given properties. Express your answer using either the general form or the slope-intercept form of the equation of a line, whichever you prefer.

1. Slope = 3, containing the point (-2,3)
2. Containing the points (-1,3) and (-1, 2)
3. Containing the points (3,4) and (2, 5)
4. Slope = -3; y - intercept = 3
5. Slope undefined; containing the point (2, 4)
6. Horizontal; containing the point (-3, 2)
7. Parallel to the line y = 2x containing the point (-1, 2)