Question

what is the domain of this exponential function?
{ x | x < -6 }
all real numbers
{ x | x ≤ -6 }
{ x | x > -6 }
{ x | x ≥ -6 }
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Explanation:

Step1: Define domain of a function

The domain is all $x$-values where the function is defined.

Step2: Analyze the graph

The left arrow extends infinitely left, and the right arrow extends infinitely right, covering every possible real $x$-value. There are no breaks or restrictions on the $x$-axis for this exponential function.

Answer:

all real numbers