Curriculum placement
Algebra 2. This describes the skill, not a learner estimate.
Solving rational equations
Solve rational equations and check excluded values
Problem types
- Write a rational equation from a situation
- Enter a rational-equation solution
- Check the original domain
- Solve a rational equation with two denominators and reject an excluded value
Builds on
Leads to
- Quadratic, rational, and exponential constraints
- Comparing functions given in different forms · See it applied
A rational model is compared through its equation, table and graph.
Related skills
- Approximating a solution from a graph · Related idea
Solutions of a rational equation are the x-values where two rational graphs meet.
- Asymptotes, holes, and intercepts · Related idea
The inputs that make a denominator zero are the holes and vertical asymptotes of the graph. They are also the excluded values that must be checked when solving a rational equation.
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