Topics for May 18th

Algebra I

Today we discussed
Today we investigated the Quadratic Formula.  We also reviewed three different ways to determine the roots of a quadratic equation:

1. Factor the equation
2. Complete the square
3. Use the Quadratic formula

Sections Covered in Textbook
1) 13-5: Solving quadratic equations by using the quadratic formula (pages 536-540)

Video Tutorials
1) Solving equations using the quadratic formula
http://www.virtualnerd.com/algebra-1/quadratic-equations-functions/discriminant-quadratic-formula/quadratic-formula/solve-by-quadratic-formula
2)  Using quadratic formula with irrational solutions
https://www.youtube.com/watch?v=Nwx4ZO9Hopk

Assignments
1) Page 539 #'s 21-37 odd, 45.  Also, pick two problems and solve by completing the square.  Ensure that your answers to both methods are the same.

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK

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Pre-Algebra

Today we discussed
We continued on with our discussion about data sets and how our sets can have similarities, but also vary.  We used the range, maximum values, minimum values, upper and lower quartiles to build box-and-whisker plots to visually represent a data set.

Sections Covered in Textbook
1) 10-4: Measures of Variation (pages 374-377)
2) 10-: Box-and-Whiskers Plots (pages 378-381)

Video Tutorials
1)  What is the interquartile range?
http://www.virtualnerd.com/middle-math/probability-statistics/measures-variation/interquartile-range-definition
2) What is a Box and Whiskers Plot?
http://www.virtualnerd.com/pre-algebra/probability-data-analysis/central-tendency-variation/measures-variation/what-is-a-boxandwhisker-plot

Assignments
1) Page 380 #'s 4-22 all

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK