7 (a) f(x)= 2x+7/3 (i) Find f ^-1(x) . (ii) Given that f(m) m/2 = , find m. (b) (i) Complete the table of values for y= 6+x-x^2 , and hence draw the graph of y= 6+x-x^2 on the grid opposite. (ii) Use your graph to estimate the maximum value of 6+x-x^2 iii) By drawing the line x + y = 4, find the approximate solutions to the equation 2+2x-x^2 = 0 (iv) The equation x - x2 = k has a solution x = 3.5 . By drawing a suitable line on the grid, find the other solution. Label your line with the letter L.