Question 509166: on a plane, every line is the graph of a linear equation in two unknowns..... true or false?
Found 2 solutions by swincher4391, Alan3354:
Answer by swincher4391(1107)   (Show Source):
You can put this solution on YOUR website! I may be thinking about this too complicated, but I would say false.
The reason being is if you have a horizontal or vertical line. Then there is only one unknown since either the y-value or x-value is fixed.
False.
Answer by Alan3354(69443)  (Show Source):
You can put this solution on YOUR website! on a plane, every line is the graph of a linear equation in two unknowns..... true or false?
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True, except for, eg, x = 5, or y = 2.
x = 5 can be x + 0y = 5, and 0x + y = 2, which is still 2 variables.
I'd go with true.
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