SOLUTION: How do we write the equation of a horizontal line? what would be an example

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Question 179191: How do we write the equation of a horizontal line? what would be an example
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
y=a is the form a horizontal line takes.
you can place any value in for a and it will be a horizontal line
y=3
:
this is a horizonal line three units above and parallel to the x axis
:
all values of y are 3 for every value of x.