#### Prove that the line through (0, 0) and (2, 3) is parallel to the line through (2, -2) and (6, 4).

**Solution:**

#### Prove that the line through,(-2, 6) and (4, 8) is perpendicular to the line through (8, 12) and (4, 24).

**Solution:**

**More Solutions:**

- The slope of a line parallel to y-axis is.
- Line passing through the points (0, -4) and (-6, 2).
- Line passing through the points (3, -2) and (3, -4).
- The points (2, 5) and (k, 3) is 2, then the value of k.
- Line passing through the points (2, 5) and (-3, 6).
- The slope of a line perpendicular to the line 3x = 4y + 11.