Solving Rational Equations

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a rational equation?
Back
A rational equation is an equation that involves at least one rational expression, which is a fraction where the numerator and denominator are polynomials.
2.
FLASHCARD QUESTION
Front
What are the steps to solve a rational equation?
Back
1. Identify the domain restrictions. 2. Find a common denominator. 3. Multiply both sides by the common denominator to eliminate fractions. 4. Solve the resulting equation. 5. Check for extraneous solutions.
3.
FLASHCARD QUESTION
Front
What are domain restrictions in rational equations?
Back
Domain restrictions are values that make the denominator of a rational expression equal to zero, which are not allowed in the solution.
4.
FLASHCARD QUESTION
Front
How do you find the domain of a rational expression?
Back
To find the domain, set the denominator equal to zero and solve for the variable. The solutions are excluded from the domain.
5.
FLASHCARD QUESTION
Front
What is an extraneous solution?
Back
An extraneous solution is a solution that emerges from the process of solving an equation but does not satisfy the original equation.
6.
FLASHCARD QUESTION
Front
How can you check if a solution is extraneous?
Back
Substitute the solution back into the original equation. If it does not satisfy the equation, it is extraneous.
7.
FLASHCARD QUESTION
Front
What is the importance of checking solutions in rational equations?
Back
Checking solutions is crucial because it ensures that the solutions are valid and do not violate any domain restrictions.
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