microeconomics

Jenny's situation is given by the graph below. Get your answers to the following four questions from the graph.Composite goods $24 4 6 8 12 24 Good X a) What is the equation for the demand curve represented on the graph? Assume demand is linear. b) What is the point price elasticity of demand at price 4? c) Is this commodity a normal, inferior, or Giffin good by all appearances? Show how you know by additional sketching on the graph