Answer :
To determine what type of value the exponent [tex]\( x \)[/tex] in an exponential function [tex]\( F(x) = a \cdot b^x \)[/tex] can take, let's analyze the components of the exponential function.
An exponential function [tex]\( F(x) = a \cdot b^x \)[/tex] has the following key characteristics:
1. Base [tex]\( b \)[/tex]: The base [tex]\( b \)[/tex] is a positive number but not equal to 1. This ensures that the function exhibits exponential growth or decay, rather than being constant.
2. Coefficient [tex]\( a \)[/tex]: The coefficient [tex]\( a \)[/tex] is a constant that scales the function but does not affect the nature of the exponentiation.
3. Exponent [tex]\( x \)[/tex]: This is the focus of our question. We need to determine what restrictions, if any, apply to [tex]\( x \)[/tex].
In general, the exponent [tex]\( x \)[/tex] in the function [tex]\( F(x) = a \cdot b^x \)[/tex] can be any real number. This includes:
- Integers (both positive and negative)
- Fractions (rational numbers)
- Irrational numbers (such as [tex]\(\sqrt{2}\)[/tex] or [tex]\(\pi\)[/tex])
- Zero
Given that the exponent [tex]\( x \)[/tex] is not restricted to a specific subset of numbers, it can indeed take any value in the domain of real numbers.
Therefore, the correct answer is:
B. any number
An exponential function [tex]\( F(x) = a \cdot b^x \)[/tex] has the following key characteristics:
1. Base [tex]\( b \)[/tex]: The base [tex]\( b \)[/tex] is a positive number but not equal to 1. This ensures that the function exhibits exponential growth or decay, rather than being constant.
2. Coefficient [tex]\( a \)[/tex]: The coefficient [tex]\( a \)[/tex] is a constant that scales the function but does not affect the nature of the exponentiation.
3. Exponent [tex]\( x \)[/tex]: This is the focus of our question. We need to determine what restrictions, if any, apply to [tex]\( x \)[/tex].
In general, the exponent [tex]\( x \)[/tex] in the function [tex]\( F(x) = a \cdot b^x \)[/tex] can be any real number. This includes:
- Integers (both positive and negative)
- Fractions (rational numbers)
- Irrational numbers (such as [tex]\(\sqrt{2}\)[/tex] or [tex]\(\pi\)[/tex])
- Zero
Given that the exponent [tex]\( x \)[/tex] is not restricted to a specific subset of numbers, it can indeed take any value in the domain of real numbers.
Therefore, the correct answer is:
B. any number
