How do you write equations for the vertical and horizontal lines passing through the point (8, -7)?

1 Answer
Jan 9, 2017

See full explanation below

Explanation:

For a vertical line the value of x, in this case color(red)(8), will never change. This will be true for any value of y. Therefore the equation for a vertical line passing through this point is:

x = 8

Likewise, for a horizontal line the value of y, in this case color(red)(-7), will never change. This will be true for any value of x. Therefore the equation for a horizontal line passing through this point is:

y = -7