Tutorial Exercise Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. (Simplify your answers completely.) f(x) = 9x2+ 2x Part 1 of 4 The slope of the tangent line at any point on the graph of f(x) = 9x2 + 2x is given by the derivative of fat x. To find the derivative of the given function, we will use the four-step process. Step 1: Compute f(x + h) and expand the expression. f ( x + h ) = ( x + h ) 2 + 2 ( x + h ) (x2 xh + h2 ) + 2 ( x + h ) x2 xh + 9/2+ 2x + 2h Finally, simplify (if possible) by combining any like terms. f ( x + h) =