Graph shows concave and convex curves intersecting at (4, 2) point.
An eye level view of a black chalkboard that is extending vertically from the bottom of the image to the top of the image as it is resting against a white wall in the background. There is an X and Y-axis drawn with white chalk, the Y-axis has two tick marks, the X-axis has four tick marks. There are two curved lines coming from the origin of the graph, one line is concave, the other line is convex, the lines intersect at a point that is labeled "(4, 2)" with yellow chalk. The concave curve terminates near the intersection while the convex curve extends toward the upper right of the plane. There are equations of the two curves to the right of the convex curve. There are white smudges of erased chalk visible at the top of the chalkboard in the image.