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What is a constant? Give an algebraic expression with a constant.
Question: What is a constant? Give an algebraic expression with a constant.
Sample answer: A constant is a number whose value does not change. In , the constant is .
Key points:
- A constant is a number that does not change.
- The expression includes a variable and a constant.
- The constant is identified correctly.
Rubric: Full credit: Defines a constant as a fixed number and gives a valid algebraic expression that identifies its constant. Partial credit: Completes only one part correctly. No credit: Gives no correct definition or example.
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