hey got a question here
posted by David Lee .
hey if dy/dx= 2 why is it wrong to say that y is alwats decreasing at a rate of 2? I don't really get it.
It is better to say that y is always decreasing with a slope of 2 on a graph of y(x), or at a rate of 2 per change in x. Saying that a rate is a number does not say enough about what variables are involved.
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