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Find the slope and y-intercept of the line, x = 5.
When a linear equation starts off "x = " and then it is a constant term (with no variable) on the other side of the equal sign, this indicates a vertical line.
Vertical lines have slopes which are undefined. rise ----- = slope For a vertical line, it is all rise and no run. Such as 5/0 or 3/0 or 128/0. run When you divide by zero, it is considered undefined. Therefore, the slope of x = 5 is undefined. Also, since it is a vertical line, passing through 5 on the x-axis, there is no y-intercept. slope = undefined no y-intercept Below, is the graph of x = 5. 
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