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anonymous

  • one year ago

Use the given graph to determine the limit, if it exists. @amistre64 @phi @solomonzelman @jdoe0001 @paki

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    find

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  3. anonymous
    • one year ago
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    @jdoe0001 please help

  4. jdoe0001
    • one year ago
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    well... the situation is the same as before really notice the left-sided limit, it ends up at -1 whilst the right-sided limit ends up at -4 so they don't meet, thus the double-sided limit does not exist

  5. anonymous
    • one year ago
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    Find the derivative of f(x) = 8x + 4 at x = 9.

  6. jdoe0001
    • one year ago
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    use the power rule keep in mind that derivative of a constant is 0 \(\bf \cfrac{d}{dx}[8x+4]\implies \cfrac{d}{dx}[8x]+\cfrac{d}{dx}[4]\)

  7. anonymous
    • one year ago
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    so it would be 4? @jdoe0001

  8. jdoe0001
    • one year ago
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    well. the derivative of 4, a constant is 0 what about the derivative of 8x? using the power rule you'd get?

  9. anonymous
    • one year ago
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    it would be 8? @jdoe0001

  10. jdoe0001
    • one year ago
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    yeap, is a constant, is 8 so that's the derivative f'(x) = 8 now if we set x = 9 the derivative or the function, doesn't change, still 8, since it's a constant

  11. anonymous
    • one year ago
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    so it is 8? @jdoe0001

  12. jdoe0001
    • one year ago
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    yeap

  13. anonymous
    • one year ago
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    The position of an object at time t is given by s(t) = -9 - 3t. Find the instantaneous velocity at t = 8 by finding the derivative. @jdoe0001

  14. jdoe0001
    • one year ago
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    hmm not very sure on that one if we were to take the derivative, is just -3 a constant, thus t = 8 will make no difference on the derivative but you may want to repost, since I'm not sure on that one

  15. anonymous
    • one year ago
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    okay thank you so much @jdoe0001

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