1) Calculate the slope and concavity of the following parametric function at the given t value. (a) x-t+5t+4, y=4t, t=0; (b) x = t, y= t-1, t = 5; 2) Find the arclength of the curve given by x = t, y = 3t-1,0 t 1. (This is taken from page 716 No 53 and answer is available on calcchat.com) 3) Find the slope of the curve given by the polar equation r = 2+3 sin(0) at the points (a) 0 = ; (b) 0 = ; (This is taken from page 727 No 64)