Table of contents
- 0. Functions7h 52m
- Introduction to Functions16m
- Piecewise Functions10m
- Properties of Functions9m
- Common Functions1h 8m
- Transformations5m
- Combining Functions27m
- Exponent rules32m
- Exponential Functions28m
- Logarithmic Functions24m
- Properties of Logarithms34m
- Exponential & Logarithmic Equations35m
- Introduction to Trigonometric Functions38m
- Graphs of Trigonometric Functions44m
- Trigonometric Identities47m
- Inverse Trigonometric Functions48m
- 1. Limits and Continuity2h 2m
- 2. Intro to Derivatives1h 33m
- 3. Techniques of Differentiation3h 18m
- 4. Applications of Derivatives2h 38m
- 5. Graphical Applications of Derivatives6h 2m
- 6. Derivatives of Inverse, Exponential, & Logarithmic Functions2h 37m
- 7. Antiderivatives & Indefinite Integrals1h 26m
1. Limits and Continuity
Finding Limits Algebraically
Problem 66d
Textbook Question
{Use of Tech} Population growth Consider the following population functions.
d. Evaluate and interpret lim t→∞ p(t).
p(t) = 600 (t²+3/t²+9)
![](/channels/images/assetPage/verifiedSolution.png)
1
Step 1: Identify the function p(t) = 600 \left(\frac{t^2 + 3}{t^2 + 9}\right) and recognize that you need to evaluate the limit as t approaches infinity.
Step 2: Simplify the expression \frac{t^2 + 3}{t^2 + 9} by dividing both the numerator and the denominator by t^2, the highest power of t in the expression.
Step 3: After simplification, the expression becomes \frac{1 + \frac{3}{t^2}}{1 + \frac{9}{t^2}}.
Step 4: Evaluate the limit of the simplified expression as t approaches infinity. As t becomes very large, the terms \frac{3}{t^2} and \frac{9}{t^2} approach 0.
Step 5: Conclude that the limit of the expression \frac{1 + \frac{3}{t^2}}{1 + \frac{9}{t^2}} as t approaches infinity is 1, and therefore, lim_{t \to \infty} p(t) = 600 \times 1 = 600. Interpret this as the population stabilizing at 600 as time goes to infinity.
Recommended similar problem, with video answer:
![](/channels/images/assetPage/verifiedSolution.png)
This video solution was recommended by our tutors as helpful for the problem above
Video duration:
6mPlay a video:
Was this helpful?
Watch next
Master Finding Limits by Direct Substitution with a bite sized video explanation from Callie
Start learningRelated Videos
Related Practice