Suppose an equation of the tangent line to the curve y = f(x) at the point where a = 4 is y = 3x - 9. Find the slope m of the tangent line to the graph of y = f(x) at a = 4. m = Find the point of intersection of y = ((x) and its tangent line at a = 4. (x, y ) = Find f(4). f(4) = Find f'(4). F'(4) = Need Help? Read It Submit