If (p(x)=4x-1), what is (p(3))?
Answer and explanation
Correct answer: 11
Substitute 3 for x: p(3)=4(3)-1=12-1=11. Therefore, 11 is the correct option. The closest distractor, 12, results from calculating 4×3 but forgetting to subtract 1. Exam tip: To find the value of a polynomial, substitute the given number for the variable and follow the correct order of operations.
Frequently asked questions
What is the correct answer to this question?
11
Why is this the correct answer?
Substitute 3 for x: p(3)=4(3)-1=12-1=11. Therefore, 11 is the correct option. The closest distractor, 12, results from calculating 4×3 but forgetting to subtract 1. Exam tip: To find the value of a polynomial, substitute the given number for the variable and follow the correct order of operations.
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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