#unit 14

Section 14 & 15 🌸

Unit 14: Use na-adjectives

Unit 15: Get emergency help

Consistent vs Independent

Think like this

Consistent: intersect

Yes or no?

Independent: # of lines

1 line or more?

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Application Problem

How to avoid basic arithmetic mistakes:

Highlight the numbers: this helps you copy them more accurately.

Highlight the negatives

Substitution

Elimination

Substitution

Substitution

Elimination

Elimination

Trick:

Solveable —> solution (x,y)

0=0 —> parallel lines

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Shortcut

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Can the Internet provide information about health?

To answer this question, we will be looking at a 2014 study by McIver & Brownstein titled: “Wikipedia Usage Estimates Prevalence of Influenza-Like Illness in the United States in Near Real-Time”. This study looked at the website traffic for certain Wikipedia pages over the course of several years to determine if they could predict when influenza would spike in the United States.

In this instance, the website traffic was significantly accurate and allowed health officials to accurately predict when influenza would spike in the United States. Without the Internet, this prediction would not have been as easily obtained and it would not have been nearly as accurate. This study sets an interesting  foundation for future research into how the Internet can provide information about the nation’s health.

How has the past predicted the future?

Technological advancement is all about looking towards the future. When you look back to the past, you can see just how invested they were in the future, often making predictions about what the future has in store for us.

One of the most accurate predictions originates with Nikola Tesla in 1926 when he first predicted facetime and smartphones. In 1993, AT&T launched an advertisement campaign focusing on the future, accurately predicting both the invention of the GPS and necessity for online meetings.