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Vertical Line
Traits and Charactristics
Vertical lines are lines that go straight up and down.
other traits of vertical lines
- The equation of a vertical line always takes the form x = k
- where k is any number and k is also the x-intercept. For instance in the graph below, the vertical line has the equation x = 2.5. As you can see in the picture below, the line goes straight up and down at x = 2.5
 - The equation of a vertical line does NOT have a y-intercept since a vertical line never crosses the y-axis.
- The slope of a vertical line is undefined.
- Vertical lines help determine if a relation is a function in math.
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