Choice A is the correct answer. Exponential growth increases with $x$.

1. Base: $1.1 > 1$ means the function is growing.
2. Comparison: As $x$ increases, $(1.1)^x$ increases.
3. Conclusion: $f(10) > f(5)$ since $10 > 5$.

💡 Strategic Tip: For growth functions ($b > 1$), larger $x$ gives larger $y$.

Choice B is incorrect because the function is increasing. Choice C is incorrect because different inputs give different outputs. Choice D is incorrect because we can determine this from the growth property.