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Understanding Slope Calculation: Position vs. Time Graphs

Learn how to calculate slope using the formula Slope = (Y2-Y1) / (X2-X1). Discover the significance of slope in position vs. time graphs. Explore Praseodymium, a rare earth metal. Includes review labs, speed problems, and smart graphs overview.

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Understanding Slope Calculation: Position vs. Time Graphs

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  1. Warm up 02-17-14 • Question: How do you calculate slope? • Answer: • Slope = Rise / Run • Slope = (Y2-Y1) / (X2-X1) • Goal: I will discuss position vs. time graphs and slope.

  2. Element of the day • 59 – Praseodymium – Pr • Rare earth metals are separated from each other in ores by a process called countercurrent solvent extraction, which takes advantage of the very slight differences in solubility of the different elements in water and essence oil. This made rare earth elements much more readily available and industry quickly looked for ways to use them. • Praseodymium is used in eyeglasses that glassblowers wear. When mixed with neodymium, the glasses filter out the bright yellow wavelength given off by sodium when working with glass. This also can be used in lighting to give bulbs a more natural feeling light.

  3. Warm up / New & Good • Review Labs • Review Speed Problems • Notes 4.2 • Smart Graphs overview • Tonight’s HW • Pg11-14 Agenda / HW

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