What Are the Domain and Range for the Equation $y = 2 ^ { x }$

question 363

Multiple Choice

What are the domain and range for the equation $y = 2 ^ { x }$ ?

• A) Domain: \(( -\infty , \infty )\); range: \(( -\infty , \infty )\)
• B) \(( -\infty , \infty )\); range: \([ 0 , \infty )\)
• C) Domain: \(( 0 , \infty )\); range: \(( -\infty , \infty )\)
• D) Domain: \(( -\infty , \infty )\); range: \(( 0 , \infty )\)

---

Definitions:

Purchasing Power

The value of a currency expressed in terms of the amount of goods or services that one unit of money can buy.

Bracket Creep

A phenomenon where inflation pushes income into higher tax brackets, increasing taxation without an actual increase in real purchasing power.

Tax Liabilities

Tax liabilities are the amounts of money that individuals, companies, and other entities are legally obligated to pay to local, state, or federal tax agencies.

Inflation Rate

The rate at which the general level of prices for goods and services is rising, and subsequently, purchasing power is falling.