The horizontal and vertical lines passing through the point (2, -2) can be written as follows:

1. Equation of the horizontal line: A horizontal line has a constant y-coordinate. Since the y-coordinate of the point (2, -2) is -2, the equation of the horizontal line is: $y = -2$

2. Equation of the vertical line: A vertical line has a constant x-coordinate. Since the x-coordinate of the point (2, -2) is 2, the equation of the vertical line is: $x = 2$

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Here are 5 related questions:

1. What is the slope of a horizontal line?
2. What is the slope of a vertical line?
3. How do you find the equation of a line given two points?
4. Can a line be both horizontal and vertical?
5. How can you graph the equations $x = 2$ and $y = -2$ on the coordinate plane?

Tip: The slope of a horizontal line is always 0, while the slope of a vertical line is undefined.