Which option has a linear polynomial whose leading coefficient is not (0)?
Answer and explanation
Correct answer: \(5x+0\)
In \(5x+0=5x\), the coefficient of \(x\) is \(5\), which is non-zero. Therefore, its degree is 1 and it is a linear polynomial. \(0x+9\) and \(0x-3\) simplify to \(9\) and \(-3\), so they are constant polynomials; \(7\) is also constant. Exam tip: for a linear polynomial, the coefficient of the variable must be non-zero.
Frequently asked questions
What is the correct answer to this question?
\(5x+0\)
Why is this the correct answer?
In \(5x+0=5x\), the coefficient of \(x\) is \(5\), which is non-zero. Therefore, its degree is 1 and it is a linear polynomial. \(0x+9\) and \(0x-3\) simplify to \(9\) and \(-3\), so they are constant polynomials; \(7\) is also constant. Exam tip: for a linear polynomial, the coefficient of the variable must be non-zero.
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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