SOLUTION: What is the slope of the line x = -3?

Question 51598: What is the slope of the line x = -3?
Answer by rchill(405) (Show Source): You can put this solution on YOUR website!
implies that can have any value. That implies that the graph is a vertical line going through x=-3. By definition, vertical lines have undefined slopes. That can be proven mathematically using . Because the x value never changes, the denominator becomes 0, and division by 0 is undefined; hence, undefined slope.
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