Refer to the graph of y = f(x) = x2 + x shown: a) Find the slope of the secant line ioining ( 2, f( 2)) and (2. f(2)). h) Find the slope of the secant line joining ( 2, f( 2)) and ( 2 + h. f( - 2 + h)). c) Find the slope of the graph at ( 2. f( 2)). d) Find the equation of the tangent line to the graph at ( 2, f( 2))