Constant of variation?3 questions on my assignment I don't get... Well, don't remember how to do.
The question is: Tell whether the equation represents direct variation. If so, identify the constant of variation.
Problems:
x + 7y = 0
2x + 3y = 1
3x + 5 = 4y + 5
I need answers, but an explanation would be appreciated as well.
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