City Guilds Model Questions Vol1 2021 Engineering Question 12

Practice objective / multiple choice question 12 from the 2021 City Guilds Model Questions Vol1 Engineering examination.

City Guilds Model Questions Vol1 2021 Engineering Objective / Multiple Choice Easy Difficulty
Question 12 CITY_GUILDS_MODEL_QUESTIONS_VOL1 • 2021 • ENGINEERING • objective

For the function \(f(x)=\frac{x^{2}-9}{x-3}\): (a) state the value of \(x\) at which \(f\) is undefined; (b) simplify \(f(x)\) for all other values of \(x\).

Answer Options

Correct Answer A. Undefined at x = 3; simplified expression f(x) = x + 3 for x ≠ 3
B. Undefined at x = 3; simplified expression f(x) = (x^2 - 9)/(x - 3) for x ≠ 3
C. Undefined at x = 3; simplified expression f(x) = x - 3 for x ≠ 3
D. Undefined at x = 0; simplified expression f(x) = x + 3 for x ≠ 0
Correct Answer
A
Correct Option:
Undefined at x = 3; simplified expression f(x) = x + 3 for x ≠ 3

About This Question

This is City Guilds Model Questions Vol1 2021 Engineering Question 12. It is one of the objective questions from the 2021 City Guilds Model Questions Vol1 Engineering examination.

Difficulty level: Easy .

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