If \(p(x)=\frac{1}{2}x+3\), what is (p(4))?
Answer and explanation
Correct answer: 5
Substituting \(x=4\), we get \(p(4)=\frac{1}{2}\times 4+3=2+3=5\). Hence, 5 is the correct option. Option 4 may result from incorrectly evaluating \(\frac{1}{2}\times4\) or from not adding 3. Exam tip: To find the value of a polynomial, substitute the given number for the variable, then perform multiplication before addition or subtraction.
Frequently asked questions
What is the correct answer to this question?
5
Why is this the correct answer?
Substituting \(x=4\), we get \(p(4)=\frac{1}{2}\times 4+3=2+3=5\). Hence, 5 is the correct option. Option 4 may result from incorrectly evaluating \(\frac{1}{2}\times4\) or from not adding 3. Exam tip: To find the value of a polynomial, substitute the given number for the variable, then perform multiplication before addition or subtraction.
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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