The Derivative (R) Question \( 2,9,4.11 \) Part 1 of 3 Find the indicated quantities for \( f(x)=3 x^{2} \).
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The Deep Dive
The derivative of the function \( f(x) = 3x^2 \) is found by applying the power rule. By decreasing the exponent by one and multiplying by the original exponent, we have \( f'(x) = 2 \cdot 3x^{2-1} = 6x \). So, the rate of change of the function at any point \( x \) can be determined using \( f'(x) = 6x \). To explore the behavior of this function, you can plug in various values of \( x \) into \( f'(x) \). For instance, at \( x = 1 \), \( f'(1) = 6(1) = 6 \), indicating the function’s steepness at that point. Additionally, at \( x = 0 \), \( f'(0) = 6(0) = 0 \), showing that the function has a horizontal tangent, a key concept in understanding the shape of the curve!