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

1 Answer
smendyka
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#

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