Algebra I
Today we discussedWe expanded on our discussion of simplifying radicals and discussed how to mathematically remove radicals from the denominator of a fraction. For an expression to be in simplest form, there must be no radicals in the denominator. We discussed what a conjugate is, and also how to simplify radical expressions so that they may be added or subtracted.
1) 12-5: Simplifying Square Roots - part 2 (pages 494-496)
2) 12-6: Adding and Subtracting Radical Expressions (pages 497-500)
Video Tutorials
1) Simplifying radical expressions using the conjugate.
https://www.youtube.com/watch?v=7oWUgtFneco
2) Combining radicals
http://www.virtualnerd.com/algebra-1/radical-expressions-equations/operations/adding-subtract/subtract-unlike-radicands
Assignments
1) Absolute Value Graphing Activity.
Download worksheet here.
Download graph paper here.
2) Page 496 #'s 39-53 odd
3) Pages 499-500 #'s 17-39 odd; 40 & 41
**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK
Pre-Algebra
Today we discussedToday we reviewed percent proportions and setting them up to solve them. Then we discussed what a discount is and what interest is, and how to calculate it.
Recall: Interest = principal * rate * time
principal = amount of money invested
rate = percentage rate expressed as a decimal, so 2% = 0.02
time = amount of time in years, so 6 months would be 0.5 years
Sections Covered in Textbook
1) 9-8: Discount and Interest (pages 349-351)
Video Tutorials
1) Percent Discount
https://www.youtube.com/watch?v=b82OUB_30lI
2) Finding Simple Interest
http://www.virtualnerd.com/algebra-1/linear-equations-solve/isolate-variables-formulas-examples/formulas-examples/simple-interest-formula-definition
Assignments
1) Percent Problems Worksheet - set up the proportion for each problem. Solving is optional.
Download worksheet and answers here.
2) Page 351 #'s 8-19 all
**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK
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