Exercise: Week 4 Concept Check Post your 50-word response to the following: Explain in your own words why the line x = 4 is a vertical line.

If the value of x=4 then no matter what the value of y is the value of x will always be 4. When you draw an x and y axis graph, each point on the line represents the place where an x and y value meet. x=4 means that, no matter what the value of y, the x value will always be 4. Every y value on the line meets the matching x value at 4, resulting in a vertical line.

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