
Date: Wed, 23 Sep 1998 13:32:23 0600 (CST)
To: QandQ@MathCentral.uregina.ca
Subject: linear equations
Name: tess
Who is asking: Student
Level: Secondary
Question:
Find the equations of a line through (1,5) and parallel to the Xaxis.
Hi Tess,
The properties of the required line are that it is parallel to the Xaxis and that it passes through (1,5). From the diagram it is clear that every point on the line is the same distance from the Xaxis. That is evert point on the line has the same Y coordinate. Since the Y coordinate of the given point is 5 a point is on th line if and only its Y coordinate is 5. Hence the equation of the line is y = 5.
Cheers,
Harley


