Domain And Range Of Exponential Functions From Equation Worksheet

Algebra 2
Exponential Functions

Total questions - 6

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How Will This Worksheet on "Domain and Range of Exponential Functions from Equation" Benefit Your Student's Learning?

  • Helps students understand how exponential functions work with different values.
  • Teaches how to analyze equations to determine the domain and range.
  • Knowing the domain and range aids in solving problems involving exponential functions.
  • Enhances math skills by requiring thoughtful consideration of possible values and outcomes.
  • Encourages students to think critically about mathematical rules and their applications.

How to Domain and Range of Exponential Functions from an Equation?

`1`. Determine the base \( b \) of the exponential function \( y = a \cdot b^x \).

`2`. The domain includes all real numbers unless specified otherwise by restrictions (e.g., \( x \in \mathbb{R} \)).

`3`. For \( y = a \cdot b^x \), the range depends on value of \( a \):

  • If \( a > 0 \), \( y > 0 \) (positive range).
  • If \( a < 0 \), \( y < 0 \) (negative range).

Solved Example

Q. What is the domain of this exponential function??\newliney=(18)x+2y = \left(\frac{1}{8}\right)^{x+2}
Solution:
  1. Identify variable domain: Identify the variable representing the domain in y=(18)x+2y = \left(\frac{1}{8}\right)^{x+2}.\newline Domain is the set of xx values.
  2. Determine possible values: Determine the possible values of xx in y=(18)x+2y = \left(\frac{1}{8}\right)^{x+2}.\newline For any value of xx, (18)x+2\left(\frac{1}{8}\right)^{x+2} is defined.\newline Possible values of xx: all real numbers.
  3. Select domain of y: Select the domain of y=(18)x+2y = \left(\frac{1}{8}\right)^{x+2}.\newline xx can be any real number.\newline Domain: all real numbers.
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About Worksheet

Algebra 2
Exponential Functions

Understanding domain and range in exponential functions involves analyzing equations. For example, in \( y = a \cdot b^x \) (where \( b > 0 \) and \( b \neq 1 \)), the domain covers all real numbers, while the range depends on the sign of \( a \). A worksheet on the domain and range of exponential functions helps practice these concepts and provides examples to illustrate applying domain and range restrictions in exponential functions.

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