Algebra: Chapter 8, Lesson 5, page 380.
Motion Problems
See yesterday’s discussion and notes.
REMEMBER, diagrams are great to get you to understand what you are looking for. The tables in the book are also good techniques. The more pictures or diagrams you have, the better chance you have of understanding what steps you have to go through! GO SLOW!!
Here are some links to excellent D-R-T examples at the PurpleMath website. Its easier to link to these than show you the same thing!
Two of tonight’s homework problems solved by MrE are here! Just click it!
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Algebra 1a: Chapter 4, Lesson 2, page 175.
The Addition Property of Inequalities
Don’t forget, the equations:
- if `a < b`, then `a + c < b + c`
- if `a > b`, then `a + c > b + c`
and similar statements are true for ≤ and ≥
For inequality of one step, follow the EXACT same steps as equalities. The only things we have to remember when graphing on a number line:
- For the symbols ≤ and ≥, the circle must be CLOSED because we INCLUDE the data point
- For the symbols < and >, the circle must be OPEN because we get as close as possible to the data point but it is NOT INCLUDED!
Here is a link from PURPLEMATH.com with some more examples!
Two of tonight’s homework problems for Chapter 4-2 are solved by MrE are here! Just click it!