Problem

Find the equation of the tangent line to the function f at x=6.
f(x)=9x2+3x8
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y=

Answer

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Answer

\boxed{y = -105x + 630}

Steps

Step 1 :Find the derivative of the function: f(x)=18x+3

Step 2 :Evaluate the derivative at x=6: f(6)=105

Step 3 :Find the value of the function at x=6: f(6)=314

Step 4 :Use the point-slope form to find the equation of the tangent line: y+314=105(x6)

Step 5 :\boxed{y = -105x + 630}

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