Which polynomial is linear in (y)?
Answer and explanation
Correct answer: \(5y-2\)
In \(5y-2\), the highest power of the variable \(y\) is 1, and the coefficient of \(y\) is non-zero. Hence, it is a linear polynomial in \(y\). \(9\) is a constant polynomial of degree 0, while \(y^2+3\) and \(y^3-y\) have degrees 2 and 3 respectively. Exam tip: A linear polynomial must have its highest variable power exactly 1.
Frequently asked questions
What is the correct answer to this question?
\(5y-2\)
Why is this the correct answer?
In \(5y-2\), the highest power of the variable \(y\) is 1, and the coefficient of \(y\) is non-zero. Hence, it is a linear polynomial in \(y\). \(9\) is a constant polynomial of degree 0, while \(y^2+3\) and \(y^3-y\) have degrees 2 and 3 respectively. Exam tip: A linear polynomial must have its highest variable power exactly 1.
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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