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www.sparknotes.com/math/algebra1/writingequations/section4.rhtml

Graph of a Line. Since x always takes the value 2 = , the equation for the line is x = . Example 4: Write an equation for the vertical line that passes through (6, 2) .

virtualnerd.com/algebra-1/linear-equation-analysis/intercept/horizontal-vertical-lines/vertical-line-example

Note: Trying to find the equation of a vertical line that goes through a given point? Remember that vertical lines only have an 'x' value and no 'y' value. Follow ...

www.mathsisfun.com/equation_of_line.html

Equation of a Straight Line. The equation of a straight line is usually written this way: ... What is the equation for a vertical line? The slope is undefined ... and ...

A vertical line passing through the point (4, -3) means that for any value of y, x is always going to be equal to 4; the formula may be generally ...

Worked examples identifying the equations and slope of horizontal and vertical lines.

www.coolmath.com/algebra/08-lines/08-graphing-horizontal-vertical-lines-01

Algebra > Lines > Horizontal and Vertical Lines ... It's a horizontal line! ... the graph of y = -2 is ... Finding the Equation of a Line Given a Point and a Slope.