Bill uses his van to deliver parcels. For each parcel Bill delivers there is a fixed charge plus £1.00 for each mile. You can use the graph to find the total cost of having a parcel delivered by Bill. 80 70 60 50 Cost (£) 40 (a) How much is the fixed charge? £ (1) Ed uses a van to deliver parcels. For each parcel Ed delivers it costs £1.50 for each mile. There is no fixed charge. (b) Compare the cost of having a parcel delivered by Bill with the cost of having a parcel delivered by Ed.

Create a graph for the demand for starfish using the following data table: quantity/price of starfish quantity (x axis) of starfish in dozens price (y axis) of starfish per dozen 0 8 2 6 3 5 5 2 7 1 9 0 is the relationship between the price of starfish and the quantity demanded inverse or direct? why? how many dozens of starfish are demanded at a price of five? calculate the slope of the line between the prices of 6 (quantity of 2) and 1 (quantity of 7) per dozen. describe the line when there is a direct relationship between price and quantity.