Integrate f′(x) to find f(x): To find f(−1), we need to evaluate the function f at x=−1. However, we are given f′(x), which is the derivative of f(x), not the function itself. Since we cannot directly find f(−1) from f′(x), we need to first find the general form of f(x) by integrating f′(x). Let's integrate f′(x) to find f(x).
Find Constant C: The integral of f′(x)=16x3+6x−7 is f(x)=416x4+26x2−7x+C, where C is the constant of integration.Simplifying the integral, we get f(x)=4x4+3x2−7x+C.
Calculate C value: We are given that f(5)=2500. We can use this information to find the value of the constant C. Plugging x=5 into f(x), we get 2500=4(5)4+3(5)2−7(5)+C.
Substitute x=−1: Calculating the values, we have 2500=4(625)+3(25)−35+C. This simplifies to 2500=2500+75−35+C.
Evaluate f(−1): Now, we solve for C: 2500=2500+40+C.Subtracting 2500 and 40 from both sides, we get C=2500−2500−40.
Evaluate f(−1): Now, we solve for C: 2500=2500+40+C. Subtracting 2500 and 40 from both sides, we get C=2500−2500−40. Calculating the value of C, we find that C=−40. Now we have the complete function f(x)=4x4+3x2−7x−40.
Evaluate f(−1): Now, we solve for C: 2500=2500+40+C. Subtracting 2500 and 40 from both sides, we get C=2500−2500−40. Calculating the value of C, we find that C=−40. Now we have the complete function f(x)=4x4+3x2−7x−40. Finally, we can find f(−1) by substituting C0 into the function C1. C2.
Evaluate f(−1): Now, we solve for C: 2500=2500+40+C. Subtracting 2500 and 40 from both sides, we get C=2500−2500−40. Calculating the value of C, we find that C=−40. Now we have the complete function f(x)=4x4+3x2−7x−40. Finally, we can find f(−1) by substituting C0 into the function C1. C2. Calculating the values, we get C3. This simplifies to C4.
Evaluate f(−1): Now, we solve for C: 2500=2500+40+C. Subtracting 2500 and 40 from both sides, we get C=2500−2500−40. Calculating the value of C, we find that C=−40. Now we have the complete function f(x)=4x4+3x2−7x−40. Finally, we can find f(−1) by substituting C0 into the function C1. C2. Calculating the values, we get C3. This simplifies to C4. Adding and subtracting the numbers, we find that C5. C6.
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