Wednesday, January 20, 2010

AIM: How do we study for the Midterm











Notice:
Midterm Exam Tomorrow January 21
Test will include but not be limited to
the following topics
Multiplying polynomials
Factoring polynomial when a = 1
Factoring polynomials when a is NOT = 1
Solving quadratic equations (exponent of 2)
Solving 1 degree linear equations (exponent 10
Dividing polynomials
Multiplying agebraic fractions
Dividing algebraic fractions


THE 3 STEP PROCEDURE FOR DIVIDING IS AS FOLLOWS:
1. Keep the first fraction
2. Change the sign of the operation to multiplication
3. Flip(riciprocal) the 2nd fraction
4. Follow the 4 steps used for multiplying

THE 4 STEP PROCEDURE FOR MULTIPLYING IS AS FOLLOWS:
1. Factor the numerator of each fraction if possible.
2. Factor the denominator of each fraction if, possible.
3. Reduce like terms in the numerator and denominator by dividing the factors OR cross cancelation.where possible.
4. Multiply the remaining terms in the numerator and in the denominator.Lesson Review:http://www.regentsprep.org/Regents/math/fractions/multdivide.htmPractice Exercise:http://www.regentsprep.org/Regents/math/fractions/Pmultdiv.htm

Wednesday, January 13, 2010

Aim: How do we determine when an algebraic fraction is undefined?










Homework
: Handout All problems

Lesson Review: A algebraic fraction is undefined when the denominator is ZERO.

The steps to determine what is/are the value of the variable(s) that make algebraic fraction undefined is a follows:

1. Set the denominator only to ZERO.
2. Solve the denominator equation for the variable.

Remember that if the denominator is a quadratic (has a variable with an exponent of 2), there will be two solutions.
Lesson Review;
Practice Exercise: