Solve the Problem $y = 2 ^ { - x }$

question 101

Multiple Choice

Solve the problem.
-Use the graph of $y = 2 ^ { - x }$ to graph the function . Write the domain and range in interval notation $f ( x ) = 2 ^ { - x }$

• A) Domain: \(( - \infty , \infty ) \quad\) Range: \(( 0 , \infty ) \quad\)
• B) Domain: \(( - \infty , \infty )\) Range: \(( - \infty , 0 )\)
• C) Domain: \(( - \infty , \infty )\) Range: \(( - \infty , 0 )\)
• D) Domain: \(( - \infty , \infty )\) Range: \(( 0 , \infty )\)

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