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A vertical line is parallel to the y-axis of a coordinate graph and every point on the line has the same x-coordinate. Vertical lines have no defined slope.

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

Similarly, in the graph of a vertical line, x only takes one value. Thus, the equation for a vertical line is x = a , where a is the value that x takes. Example 3: Write ...

www.wyzant.com/resources/answers/5093/the_equation_of_the_vertical_line_that_passes_through_the_point_4_3

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 written ...

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 ...

mathcentral.uregina.ca/qq/database/qq.09.06/alex3.html

Think about the graph of the vertical line through (6, -2). x = 6. The x-coordinate of every point on the graph is 6. Furthermore if a point in the plane is not on the ...

www.ixl.com/math/algebra-1/equations-of-horizontal-and-vertical-lines

Fun math practice! Improve your skills with free problems in 'Equations of horizontal and vertical lines' and thousands of other practice lessons.

.ask.com/youtube?q=Equation+of+a+Vertical+Line&v=7W8-YcsF0ts
Jan 4, 2013 ... Equations for the vertical and horizontal lines passing through a point need to be written in a very specific way. Find out how to write equations ...

www.mathwords.com/v/vertical_line_equation.htm

Vertical Line Equation. x = a, where a is the x-intercept. Movie Clip (with narration ). Eqn of a Vertical Line Vertical Line: how to find the equation (1.46M) ...

www.varsitytutors.com/hotmath/hotmath_help/topics/horizontal-vertical-lines

Equations of horizontal and vertical lines only have one variable. The equation x = 4 represents a vertical line which crosses the x-axis at the point (4, 0).