Exponential functions have a horizontal asymptote. The equation of the horizontal asymptote is <math><mstyle displaystyle="true"><mi>y</mi><mo>=</mo><mn>0</mn></mstyle></math> .

Horizontal Asymptote: <math><mstyle displaystyle="true"><mi>y</mi><mo>=</mo><mn>0</mn></mstyle></math>

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