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baddinlol

  • 3 years ago

Calculus question

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  1. baddinlol
    • 3 years ago
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    f(x)=e^(-mx) + 3x

  2. baddinlol
    • 3 years ago
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    For a particular value of m, the tangent of the graph y = f(x) at x = -6 passes through the origin. Find this value of m

  3. ghazi
    • 3 years ago
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    differentiate it and put dy/dx=0 at x=6 you will get value of m

  4. baddinlol
    • 3 years ago
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    why do we have to put dy/dx = 0, how can we assume gradient of the tangent is 0?

  5. ghazi
    • 3 years ago
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    well you can find it other way too your gradient needs to be passing through (0,0)

  6. baddinlol
    • 3 years ago
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    I found m=0, is it correct

  7. ghazi
    • 3 years ago
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    yes , its correct then only its tangent will pass through origin cuz you will get tangent as dy/dx=3x

  8. baddinlol
    • 3 years ago
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    is m=1/6 also correct?

  9. ghazi
    • 3 years ago
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    no, cuz then tangent will not pass through origin

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