J's answer to Sheeeeesh's Secondary 4 A Maths Singapore question.
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Answered in main comments.
Another way to think about it :
If dx/dt = 4, it can be taken to mean that as t increases at a certain rate/by a certain amount, x increases by 4 times of that rate/amount.
So reciprocally, t increases at ¼ the rate of x increasing.
Another way to think about it :
If dx/dt = 4, it can be taken to mean that as t increases at a certain rate/by a certain amount, x increases by 4 times of that rate/amount.
So reciprocally, t increases at ¼ the rate of x increasing.
Date Posted:
3 years ago
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