Algebra: Chapter 9-4, p 413 (Thursday)
Inequalities and Absolute Value
We do the same thing as yesterday’s lesson. We find the 2 equations to solve. There are 2 differences however:
If the equation is of the form `|A| ≤ b`, then this is called a CONJUNCTION and the solution space is IN BETWEEN EACH DATA POINT.
If the equation is of the form `|A| ≥ b`, then this is called a DISJUNCTION and the solution space is TO THE LEFT AND RIGHT OF THE 2 POINTS.
Here are some examples for purplemath.com that talk about today and yesterday’s lesson.
Algebra: Chapter 9-3, p 411 (Wednesday)
Equations and Absolute Value
To solve and equation of the form `|A| = b`, just solve 2 the 2 equations `A = b` and `A = −b`. We have 2 equations to work on but remember that the absolute value CAN NEVER BE NEGATIVE!
As an example to solve `|5x −3| = 17`, you solve the 2 equations `5x −3 = 17` and `5x −3 = −17`
Math-8: Chapter 6 TEST (Thursday)
Math-8: Chapter 6 Quiz C/D (Wednesday)