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

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Question 51598: What is the slope of the line x = -3?
Answer by rchill(405) About Me  (Show Source):
You can put this solution on YOUR website!
x=-3 implies that y 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 m=%28y2-y2%29%2F%28x2-x1%29. Because the x value never changes, the denominator becomes 0, and division by 0 is undefined; hence, undefined slope.