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| Math Central | Quandaries & Queries |
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Question from Kagiso, a student: The equation for a vertical line that goes through the point (7; -3) is? |
Hi,
I sketched the Cartesian plane marking the X-axis, the Y-axis, the vertical line through P (7, -3)and I labeled other points on the line, A, B, C, D and E.
What are the co-ordinates of A, B, C, D and E? What is the common feature of these co-ordinates? Write this fact algebraically. This is the equation of the line.
Penny
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