Find the instantaneous rate of change at 3 f(x) = 3x²+5 Thank you.
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Originally Posted by beachbunny619 Find the instantaneous rate of change at 3 f(x) = 3x²+5 Thank you. $\displaystyle f'(x) = 2*3*x^1 + 0 = 6x$ f'(3) = 18
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