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
- 8. Definite Integrals3h 25m
5. Graphical Applications of Derivatives
Curve Sketching
Problem 3.6.54a
Textbook Question
{Use of Tech} Fuel economy Suppose you own a fuel-efficient hybrid automobile with a monitor on the dashboard that displays the mileage and gas consumption. The number of miles you can drive with g gallons of gas remaining in the tank on a particular stretch of highway is given by m(g) = 50g−25.8g²+12.5g³−1.6g⁴, for 0≤g≤4.
a. Graph and interpret the mileage function.
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1
Identify the function m(g) = 50g - 25.8g² + 12.5g³ - 1.6g⁴, which represents the mileage based on the gallons of gas g.
Determine the domain of the function, which is given as 0 ≤ g ≤ 4, meaning we will only consider values of g from 0 to 4.
Calculate the values of m(g) at key points within the domain, such as g = 0, 1, 2, 3, and 4, to understand how mileage changes with gas consumption.
Use the calculated values to plot the points on a graph, with g on the x-axis and m(g) on the y-axis, to visualize the relationship between gas and mileage.
Interpret the graph by analyzing the shape of the curve, identifying any maximum or minimum points, and discussing what these points mean in the context of fuel economy.
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