Then for our lesson (pdf) we looked at applying a linear equation in slope-intercept form to the problem of determining how long it takes alcohol to leave the human body. Hopefully you have an even greater appreciation for the dangers of driving under the influence, driving while ability impaired, and just the general knowledge that it takes an awfully long time to get back to normal ability after ingesting alcohol.
While I would hope that as you begin to drive you make good driving decisions at least partly because you don't want to hurt yourself, your friends, or other folks you come into contact with, you might also want to watch the following for more selfish reasons to be smart.
Your homework for tonight is:
- Review the lesson
(pdf) from today. Make sure you understand where the slope and y-intercept in our equation came from. Then make sure you understand how we substituted in for x when given a time (a certain number of hours after midnight), and how we substituted in for y and solved the resulting equation when we were given a certain BAC (to figure out what time the BAC would drop below a certain level). If you don't understand this, please come in for help ASAP.
- Complete the Graphing Linear Equations Using Slope-Intercept Online Pre-Assessment on the Moodle.
- Finish the blog post that was assigned on Friday if you haven't done that yet. It's due before you go to bed tonight.
- Watch and complete the Writing Linear Equations in Slope-Intercept Form video (you know what to do).
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