A professional 2D 1-quadrant Cartesian coordinate graph. The vertical y-axis is labeled 'Tanks' and the horizontal x-axis is labeled 'Cars'. A thick, solid black curve starts high on the y-axis and arcs downward and rightward until it touches the x-axis, forming a quarter-circle shape that is concave to the origin. On this curve, label a 'Point A' near the bottom right and a 'Point B' near the top left. Draw a distinct arrow along the curve moving from A to B. Minimalist textbook style, clean white background, high-contrast black lines. Mehr sehen