Use the difference quotient method to determine the equation of the tangent to the graph of (x) = x - 2x+13 where x = (A-4 marks) 3th 3) For the graph of y = f(x) shown below, determine each of the following limits. (A-4 marks) T y 2 3 -y = f(x)- 4 a) lim f(x) = x-2- b) lim f(x) = x-2 c) lim f(x) = x-2 d) lim f(x)= x-0 4) As a snowball melts, it's volume decreases. The volume in cubic centimetres is given by the 4 equation V(r)=, where r is the radius in centimetres. Determine, to the nearest tenth, 3 the rate of change of the snowball's volume when its radius is 10 cm. (A-4 marks) vol=4/ Mr r=10 r = (10+h)