To find the derivative of the function f(x) = 5x^9 at x = 2, you’ll want to follow these steps:
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First, apply the power rule of differentiation. The power rule states that if you have a term of the form ax^n, the derivative is given by n * a * x^(n-1).
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In our case, f(x) = 5x^9, where a = 5 and n = 9. Therefore, the derivative f'(x) is:
f'(x) = 9 * 5 * x^(9-1) = 45x^8
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Next, substitute x = 2 into the derivative:
f'(2) = 45 * (2^8)
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Now, calculate 2^8:
2^8 = 256
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Finally, multiply:
f'(2) = 45 * 256 = 11520
Therefore, the derivative of the function f(x) = 5x^9 at x = 2 is 11520.