# OpenStaxCollege

OpenStaxCollege
http://openstaxcollege.org
Quốc gia: American
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OpenStax College is a nonprofit organization committed to improving student access to quality learning materials. Our free textbooks are developed and peer-reviewed by educators to ensure they are readable, accurate, and meet the scope and sequence requirements of your course. Through our partnerships with companies and foundations committed to reducing costs for students, OpenStax College is working to improve access to higher education for all. OpenStax College is an initiative of Rice University and is made possible through the generous support of several philanthropic foundations.

##### Conic Sections in Polar Coordinates

In this section, you will: <ul> <li>Identify a conic in polar form.</li> <li>Graph the polar equations of conics.</li> <li>Deﬁne conics in terms of a focus and a directrix.</li> </ul>

##### Polar Coordinates: Graphs

In this section you will:<ul><li>Test polar equations for symmetry.</li><li>Graph polar equations by plotting points.</li></ul>

##### Defining Money by Its Functions

<para>By the end of this section, you will be able to:</para> <ul> <li>Explain the various functions of money</li> <li>Contrast commodity money and fiat money</li> </ul>

##### Continuity

In this section, you will:<ul><li>Determine whether a function is continuous at a number.</li><li>Determine the numbers for which a function is discontinuous.</li><li>Determine whether a function is continuous.</li></ul>

##### Inverse Functions

In this section, you will:<ul><li>Verify inverse functions.</li><li>Determine the domain and range of an inverse function, and restrict the domain of a function to make it one-to-one.</li><li>Find or evaluate the inverse of a function.</li><li>Use the graph of a one-to-one function to graph its inverse function on the same axes.</li></ul>

##### Perfect Competition and Why It Matters

By the end of this section, you will be able to:<ul><li>Explain the characteristics of a perfectly competitive market</li><li>Discuss how perfectly competitive firms react in the short run and in the long run</li></ul>

##### Keynes’ Law and Say’s Law in the AD/AS Model

By the end of this section, you will be able to: <ul> <li>Identify the neoclassical zone, the intermediate zone, and the Keynesian zone in the aggregate demand/aggregate supply model</li> <li>Use an aggregate demand/aggregate supply model as a diagnostic test to understand the current state of the economy</li> </ul>

<para>By the end of this section, you will be able to:</para><ul><li>Identify three factors that influence a country's level of trade</li><li>Differentiate between balance of trade and level of trade</li></ul>

##### How Government Borrowing Affects Private Saving

<para>By the end of this section, you will be able to:</para> <ul> <li>Apply Ricardian equivalence to evaluate how government borrowing affects private saving</li> <li>Interpret a graphic representation of Ricardian equivalence</li> </ul>

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