O 2 (1, -4) Graph of f* Let fbe a twice-differentiable function defined on the interval -1.2

o 2 of Let fbe a twice-differentiable function defined on the interval - I withfil F2_ The graph off, the derivative of f, is shown above. The graph of crosses the x-axis at I and and has a horizontal tangent at x2_ Let g be the function given by 6. Write an equation for the line tangent to the graph Ofg at Fl. Please respond on separate vuper, following directions from your teacher. Consider the curve defined by the equation y cosy x I for O s y s 2m (a) Find dy/dx in terms of)'. Please respond on separ ate paper, following directions from your teacher. (b) Write an equation for each vertical tangent to the curve Please respond on paper, following directions from your teacher. (c) Find d2y/dr2 in terms of y, Please respond on selurate paper, following directions from your teacher,