What are the domain, range, and asymptote of \( h(x)=(0.5)^{x}-9 \) ? domain: \( \{x \mid x>-9\} ; \) range: \( \{y \mid y \) is a real number \( \} \); asymptote: \( y=-9 \) domain: \( \{x \mid x \) is a real number \( \} \); range: \( \{y \mid y>9\} \); asymptote: \( y=9 \) domain: \( \{x \mid x \) is a real number\}; range: \( \{y \mid y>-9\} ; \) asymptote: \( y=-9 \)
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The Deep Dive
The function \( h(x)=(0.5)^{x}-9 \) is an example of an exponential function transformed by a vertical shift. Its domain extends infinitely, allowing all real numbers as viable inputs, which can be expressed as \( \{x \mid x \) is a real number\}. The range of this function, on the other hand, approaches -9 but never quite reaches it, due to the behavior of the exponential component. Therefore, the range can be defined as \( \{y \mid y > -9\} \). The horizontal asymptote is indeed \( y = -9 \), illustrating that as \( x \) goes towards positive infinity, \( h(x) \) gets ever closer to -9 without touching it.