This image displays four graphs of functions, illustrating concepts of even and odd functions. Graphs (b) and (d) are symmetric about the y-axis, indicating even functions, while graphs (a) and (c) are symmetric about the origin, indicating odd functions.
Four graphs labeled (a), (b), (c), and (d) illustrating different functions. Graph (a) shows a line passing through the origin with negative slope. Graph (b) shows a downward-opening parabola symmetric about the y-axis. Graph (c) shows a line passing through the origin with positive slope. Graph (d) shows a V-shaped graph opening upwards, symmetric about the y-axis.