How do you graph #y=7 # by plotting points?

1 Answer
Kevin D.
May 29, 2017

It's a line parallel to the #x# axis passing through #7# on the #y# axis.

Explanation:

There are other ways to understand graphing.
For this question, you should look at a graph as a set of points that satisfy a certain condition.
For example, the graph #y=x# is a set of all points whose #x# component is equal to its #y# component. In mathematics, this is called a set. We notate the set of all points who satisfy #y=x# as follows:
#P={(x, y)|y=x}#

Anyways, back to your original question, we can rewrite the equation as:
#P={(x, y)|y=7}#
Which is essentially a set of all points who has a #y# component of #7#. Notice how the #x# value does not matter.

It's a line parallel to the #x# axis passing through #7# on the #y# axis.

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