af12fc3c-bfef-480a-9a59-dd8a0b95eb01.html

<p>Supratim Das is a PhD candidate at MIT. He is doing his part to help fight global climate change by trying to produce a longer-lasting battery. He believes that by producing longer-lasting batteries for our mobile devices and our cars, we can reduce our overall energy consumption. Mr. Das can use functions to help him calculate energy inputs and outputs. </p>
<p>In this section, you will expand your understanding of functions. You will use function notation to represent statements about a function and interpret statements in function notation in terms of a situation. You will learn that some functions can be defined with a rule and that the rule can be expressed in function notation. You will use the rule of a function to find the output when the input is given.</p>
<p>This section includes 5 lessons:</p>
<ul>
  <li>4.1 Describing and Graphing Situations</li>
  <li>4.2 Function Notation</li>
  <li>4.3 Interpreting &amp; Using Function Notation</li>
  <li>4.4 Using Function Notation to Describe Rules, Part 1</li>
  <li>4.5 Using Function Notation to Describe Rules, Part 2</li>
</ul>
<br><br>
<div class="os-raise-d-flex-nowrap os-raise-justify-content-center">
  <div class="os-raise-video-container"><iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen frameborder="0" src="https://www.youtube-nocookie.com/embed/RlXNDJfsnXs;&rel=0" title="YouTube video player"></iframe></div>
</div>