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What is the zero of the linear polynomial (x+9)?
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Answer and explanation
Correct answer: -9
A zero of a polynomial is a value that makes the polynomial equal to 0. Here, x+9=0 gives x=-9. Checking: (-9)+9=0, so -9 is the correct zero. Substituting 9 gives 9+9=18, so it is not a zero. Exam tip: for ax+b, the zero is x=-b/a.
Frequently asked questions
What is the correct answer to this question?
-9
Why is this the correct answer?
A zero of a polynomial is a value that makes the polynomial equal to 0. Here, x+9=0 gives x=-9. Checking: (-9)+9=0, so -9 is the correct zero. Substituting 9 gives 9+9=18, so it is not a zero. Exam tip: for ax+b, the zero is x=-b/a.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Linear polynomials.
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