Which option has zero \(-\frac{2}{5}\) for a linear polynomial?
Answer and explanation
Correct answer: \(5x+2\)
A zero of a linear polynomial is the value of x that makes the polynomial equal to 0. From \(5x+2=0\), we get \(5x=-2\), so \(x=-\frac{2}{5}\). Therefore, option C is correct. Option A has zero \(\frac{2}{5}\) because its constant term is \(-2\). Exam tip: the zero of \(ax+b\) is \(-\frac{b}{a}\).
Frequently asked questions
What is the correct answer to this question?
\(5x+2\)
Why is this the correct answer?
A zero of a linear polynomial is the value of x that makes the polynomial equal to 0. From \(5x+2=0\), we get \(5x=-2\), so \(x=-\frac{2}{5}\). Therefore, option C is correct. Option A has zero \(\frac{2}{5}\) because its constant term is \(-2\). Exam tip: the zero of \(ax+b\) is \(-\frac{b}{a}\).
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Linear polynomials.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
