Question

which graph shows exponential growth?

Explanation:

1. The top graph is an exponential decay curve: as $x$ increases, $y$ decreases rapidly, approaching 0.
2. The middle graph is a linear function: it has a constant, straight-line slope, not exponential change.
3. The bottom graph is an exponential growth curve: as $x$ increases, $y$ increases at an increasing (accelerating) rate, which matches the definition of exponential growth.

Answer:

The bottom graph (the third curve, curving upward as $x$ increases to the right) shows exponential growth.