Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
6. Exponential & Logarithmic Functions
Introduction to Exponential Functions
1:40 minutes
Problem 15
Textbook Question
Textbook QuestionFor ƒ(x) = 3^x and g(x)= (1/4)^x find each of the following. Round answers to the nearest thousandth as needed. See Example 1. g(2)
Verified Solution
This video solution was recommended by our tutors as helpful for the problem above
Video duration:
1mPlay a video:
Was this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Exponential Functions
Exponential functions are mathematical expressions in the form f(x) = a^x, where 'a' is a positive constant. These functions exhibit rapid growth or decay depending on the base 'a'. In this question, f(x) = 3^x and g(x) = (1/4)^x are both exponential functions, with g(x) representing exponential decay since its base is a fraction less than 1.
Recommended video:
6:13
Exponential Functions
Evaluating Functions
Evaluating a function involves substituting a specific value for the variable in the function's expression. For example, to find g(2), you replace 'x' in g(x) = (1/4)^x with 2, resulting in g(2) = (1/4)^2. This process is essential for determining the output of the function at a given input.
Recommended video:
4:26
Evaluating Composed Functions
Rounding Numbers
Rounding numbers is the process of adjusting a number to a specified degree of accuracy, often to make it simpler or more understandable. In this context, rounding to the nearest thousandth means adjusting the result of g(2) to three decimal places. This is important for presenting answers in a clear and standardized format.
Recommended video:
4:47
The Number e
Watch next
Master Exponential Functions with a bite sized video explanation from Callie
Start learningRelated Videos
Related Practice