The graph of the exponential function $y = 3^x$ is a curve that exhibits exponential growth as $x$ increases. Here's a description of its key features:

1. Intercept: The graph passes through the point $(0, 1)$, because $3^0 = 1$.
2. Asymptote: The x-axis ($y = 0$) is a horizontal asymptote. As $x$ decreases towards negative infinity, the graph gets closer to $y = 0$, but never quite reaches it.
3. Growth: For positive values of $x$, the function grows rapidly as $x$ increases. For example:
   • When $x = 1$, $y = 3^1 = 3$
   • When $x = 2$, $y = 3^2 = 9$
   • As $x$ becomes large, $y$ becomes very large.

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