Sketch the graph of y= X ii) Determine the y-coordinates of the following points that lie on the graph of the parabola y = x i) Q (3.5, y) ii) (2(3.1, y) iii) (3(3.01, y) iv) @ (3.001, y) iii) Calculate the slopes of the secants through P ( 3 , 9 ) and each of the points Q1, Q2, Q3, a Q4. Calculate the slopes of the tangent to the graph at point P (3,9) V) Use your results from parts (iii) and (iv) to estimate the slope of the tangent at point P(3,9)