# SOLUTION: In going over a test review it asks for the equation for: undefined slope with a x intercept of 2. The answer is x=2. I don't understand the process to get that answer, Thank yo

Algebra ->  Algebra  -> Graphs -> SOLUTION: In going over a test review it asks for the equation for: undefined slope with a x intercept of 2. The answer is x=2. I don't understand the process to get that answer, Thank yo      Log On

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 Question 224941: In going over a test review it asks for the equation for: undefined slope with a x intercept of 2. The answer is x=2. I don't understand the process to get that answer, Thank you Answer by Edwin McCravy(8908)   (Show Source): You can put this solution on YOUR website!In going over a test review it asks for the equation for: undefined slope with a x intercept of 2. The answer is x=2. I don't understand the process to get that answer, Thank you ``` To understand it you must understand the graph. The only lines with undefined slope are vertical lines. First draw the x-intercept, which is the point on the x axis marked 2. It has the coordinates (2,0): Draw a vertical line through that point: Now look at some more points on that vertical line: Look at all those points, (2,4), (2,3), (2,1.5), (2,0), (2,-2), (2,-3) What do they have in common? Well, they have different y-coordinates, but THEY ALL HAVE THE SAME x-COORDINATE! And that x-COORDINATE is 2. So to describe that line we could say: "The line on which every point has x = 2" That's why we say the equation of the line is x = 2. That's because the x-coordinate is always equal to 2. Edwin```