Which linear polynomial becomes (0) at (x=-4)?
Answer and explanation
Correct answer: \(x+4\)
A zero of a polynomial is a value that makes the polynomial equal to 0. On substituting \(x=-4\), \(x+4=-4+4=0\); hence, \(x+4\) is the correct linear polynomial. In contrast, \(x-4\) gives \(-8\) at \(x=-4\), so it is not correct. Exam tip: the zero of \(x+a\) is \(-a\).
Frequently asked questions
What is the correct answer to this question?
\(x+4\)
Why is this the correct answer?
A zero of a polynomial is a value that makes the polynomial equal to 0. On substituting \(x=-4\), \(x+4=-4+4=0\); hence, \(x+4\) is the correct linear polynomial. In contrast, \(x-4\) gives \(-8\) at \(x=-4\), so it is not correct. Exam tip: the zero of \(x+a\) is \(-a\).
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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