document.write( "Question 698712: Hi, I have a question about equations of a horizontal or vertical line that pass through the given point with ordered pair(0,5) The question asks: write the equations of a horizontal line and of a vertical line that pass through the given point. Write equation for the horizontal line and for the vertical line. \n" ); document.write( "
Algebra.Com's Answer #430999 by Positive_EV(69)\"\" \"About 
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A horizontal line will always have the equation y = a for some number a. You can think of a horizontal line as the set of all points that share a y-value. The point (0,5) has a y-value of 5, so the horizontal line is the set of all points with a y-value of 5, which has the equation y = 5.
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\n" ); document.write( "\n" ); document.write( "A vertical line will always have the equation x = a for some number a. In a similar sense to the horizontal line, you can think of a vertical line as the set of all points with the same x-value. With the point (0,5), the x-value is 0, so the vertical line is the set of all points with an x-value of 0 which is the line x = 0.
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