A graph plots price versus quantity. 3 curves M C, A T C, and A V C and 4 horizontal lines M R 1, M R 2, M R 3 and M R 4 are graphed.The horizontal axis is labeled quantity. Points Q 1, Q 2, Q 3, Q 4, and Q 5 are marked on the horizontal axis from left to right. The vertical axis is labeled price. Points P 1, P 2, P 3, and P 4 are marked on the vertical axis from bottom to top. The graph shows 3 curves M C, A T C, and A V C and 4 horizontal lines M R 1, M R 2, M R 3, and M R 4. The curve labeled M C starts near a point that is slightly above P 1, goes down and to the right, reaches the minimum, goes up and to the right, and ends at the top right. The curve labeled A T C starts at the top left, goes down and to the right, reaches the minimum, goes up and to the right, and ends at the top-right. The curve labeled A V C starts at a point that is slightly