EngageNY
Equations Involving a Variable Expression in the Denominator
0/0 doesn't equal 0! Begin this lesson by allowing the class to explore the concept of dividing by zero. The introduction allows for discovery and provides meaningful examples of dividing by zero. This understanding leads to solving...
Curated OER
Excluded Values
In this simplification of radicals activity, students solve 26 problems to find the values of the variable that should be excluded from answers because they will make the denominator equal zero.
Curated OER
Solving Absolute Value Inequalities
Start this activity with a brief description of how to solve absolute value inequalities. A space is provided to help classify the inequalities into types (greater than, less than, or equal to) and for learners to show how to graph their...
Illustrative Mathematics
Watch out for Parentheses
It is important for the algebra learner to understand the use of parentheses. Mathematicians of all levels can make errors with nested parentheses. This will give them some practice. It makes for a good class starter or quick assessment.
Curated OER
Rational Expressions
For this algebra worksheet, students solve expressions containing fractions. They solve using cancellations and factoring. There are 26 problems with an answer key.
Curated OER
Quadratic Functions
In this algebra activity, students graph quadratic functions and identify the vertex, axis of symmetry, maximum and minimum and intercepts. There are 7 questions.
CK-12 Foundation
Ck 12: Algebra: Excluded Values for Rational Expressions
[Free Registration/Login may be required to access all resource tools.] Reduce rational expressions involving fractions to simplest terms and find their excluded values.
CK-12 Foundation
Ck 12: Algebra: Excluded Values for Rational Expressions
[Free Registration/Login may be required to access all resource tools.] Learn how to simplify rational expressions and find excluded values.
CK-12 Foundation
Ck 12: Algebra: Excluded Values for Rational Expressions
[Free Registration/Login may be required to access all resource tools.] Learn how to simplify rational expressions and find excluded values.
Help Algebra
Help algebra.com: Rational Expressions
In addition to defining rational expressions, this resource demonstrates how to find the excluded values and zeros of the expressions.
CK-12 Foundation
Ck 12: Algebra: Solving Rational Equations Study Guide
This comprehensive study guide highlights the main terms and formulas needed to review solving rational equations. Examples are included.
Math Planet
Math Planet: Simplify Rational Expression
An algebraic expression where both the numerator and the denominator are polynomials e.g.(x+3) / x is called a rational expression. Since the denominator can't be zero there are values of x which are excluded from the rational...