Answer:
y=0
Explanation:
Exponential functions, always have a horizontal asymptote. A function of the form f(x) = a (b^x) + c always has a horizontal asymptote at y = c. In this case the function is
![y=3^(x+2) \\\\We\ can\ rewrite\ it\ like\\\\\y=3^x.3^2\\y=9(3^x)](https://img.qammunity.org/2021/formulas/mathematics/high-school/q3v127c785o2jqxgp4ll5qendp9nemp8p5.png)
so it doesn't have a +c which means the horizontal asymptote is y = c = 0
y = 0 is the horizontal asymptote