Problem

Given the functions f(x)=3x2+2x1 and g(x)=x2, find the slope of the line tangent to the curve of the function h(x)=f(g(x)) at x=2.

Answer

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Answer

Finally, we substitute x=2 into h(x) to find the slope of the tangent line at x=2. So, the slope is h(2)=32(22)+2=2.

Steps

Step 1 :First, we need to find the function h(x)=f(g(x)). Substituting g(x) into f(x), we have h(x)=3(g(x))2+2g(x)1=3(x2)2+2(x2)1.

Step 2 :Next, we find the derivative of h(x) using the chain rule. The derivative, h(x), is 32(x2)+2.

Step 3 :Finally, we substitute x=2 into h(x) to find the slope of the tangent line at x=2. So, the slope is h(2)=32(22)+2=2.

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