SOLUTION: Determine whether 2x+4y=15 defines y as a function of x.

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Question 658563: Determine whether 2x+4y=15 defines y as a function of x.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
2x%2B4y=15..first solve it for y
4y=-2x%2B15
y=-%282%2F4%29x%2B15%2F4
y=-%281%2F2%29x%2B3.75
There is nothing except a y on one side and there isn't a y on the other, so it is a function.
+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+-%281%2F2%29x%2B3.75%29+
as you can see, it is a line, continuous, and for each x there is unique y