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{:[f^(')(x)=-7e^(x)" and "],[f(5)=24-7e^(5).],[f(0)=◻]:}

f(x)=7ex and f(5)=247e5.f(0)= \begin{array}{l}f^{\prime}(x)=-7 e^{x} \text { and } f(5)=24-7 e^{5} . \\ f(0)=\square\end{array}

Full solution

Q. f(x)=7ex and f(5)=247e5.f(0)= \begin{array}{l}f^{\prime}(x)=-7 e^{x} \text { and } f(5)=24-7 e^{5} . \\ f(0)=\square\end{array}
  1. Derivative of f(x)f(x): We have f(x)=7exf'(x) = -7e^x, which is the derivative of f(x)f(x). To find f(0)f(0), we need to integrate f(x)f'(x).
  2. Integration of f(x)f'(x): The integral of f(x)=7exf'(x) = -7e^x is f(x)=7ex+Cf(x) = -7e^x + C, where CC is the constant of integration.
  3. Finding Constant of Integration: We know f(5)=247e5f(5) = 24 - 7e^5. Let's plug x=5x = 5 into the integrated function to find CC.
  4. Substitute x=5x = 5: 7e5+C=247e5-7e^5 + C = 24 - 7e^5.
  5. Solving for C: Solving for C, we get C=24C = 24.
  6. Final Function f(x)f(x): Now we have the function f(x)=7ex+24f(x) = -7e^x + 24.
  7. Finding f(0)f(0): To find f(0)f(0), we plug in x=0x = 0 into f(x)f(x).
  8. Substitute x=0x = 0: f(0)=7e0+24f(0) = -7e^0 + 24.
  9. Calculate f(0)f(0): Since e0=1e^0 = 1, f(0)=7(1)+24f(0) = -7(1) + 24.
  10. Result: f(0)=7+24f(0) = -7 + 24.
  11. Result: f(0)=7+24f(0) = -7 + 24.f(0)=17f(0) = 17.

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