Below are four supply curve diagrams, each of which represents a change in supply or a change in quantity supplied. 1 Quantity Supplied Price The image is the first diagram in the panel that shows four supply curve diagrams. The horizontal axis measures the quantity supplied and the vertical axis measures the price. In the graph, S subscript 1 is the initial upward-sloping supply curve. A set of arrows show that S subscript 1 shifts leftward to S subscript 2. S subscript 2 is parallel to S subscript 1. 2 Quantity Supplied Price The image is the second diagram in the panel that shows four supply curve diagrams. The horizontal axis measures the quantity supplied and the vertical axis measures the price. In the graph, S subscript 1 is the upward-sloping supply curve. Two points labeled A and B are marked on S subscript 1. An arrow shows a downward movement from point A to point B. 3 Quantity Supplied Price The image is the third diagram in the panel that shows four supply curve diagrams. The horizontal axis measures the quantity supplied and the vertical axis measures the price. In the graph, S subscript 1 is the initial upward-sloping