2 Differentiate with respect to : C Remember that 7 =xn f 2x + 24 9 22 6 h 9- 2 j 3x - k 5 - 8 I 52-2 1 n 23+ 4 m 4x 2x - 5 O 3 Find the gradient function for f(x) where f(x) is: a b C d a3 - 1 x e -+6Vx f 2x - Vx h 1 i 2x2 _ 3 j Va - 4 k 2 +5 7 - 22 m 3x2 - x x 0 2x - x2 - x+2 Va 4 5 Find: a dt dy for y = th - 3t b dt dy for y = 7 - 6 C for T = Vi- 2 d de for P = 2 - 10uvu 7 Find constants b and c such that: a f(x) = x2 + (b + 1)x + 2c, f(2) = 4, and f'(-1) = 2 b f(x) = br + -, f(3) =5, and f'(1) = 5. 11 The cost of producing a toasters each week is given by C = 1785 + 3x + 0.002x2 pounds. Find the value of - do when a = 1000, and interpret its meaning