10. Use the following limit to find the slope of the tangent line to the function + ( x ) = - 2x at the Point ( 1 , - 2 ) tan im flath ) _ f can ho Also find the equation of the tangent line .11. The graph of the function + is ap shown below. Sketch the graph of * ( x ) y = + ( x ) ( 6, 2) ( - 2, 0 ) (8, 0 ) ( - 6, - 5)12. Find the derivative of the of function using the definition of derivative . 2 * (x ) = - 2 X + 1 1im * ( x th ) ( X ) ho h