फलन (f(x)=9-3|x+1|) की रेंज क्या है?

What is the range of (f(x)=9-3|x+1|)?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,9]\)

Step 1

Concept

Since \(|x+1|\ge0\), \(9-3|x+1|\le9\) and can go down without bound. In exams a negative coefficient changes the range direction.

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,9]\). Since \(|x+1|\ge0\), \(9-3|x+1|\le9\) and can go down without bound. In exams a negative coefficient changes the range direction.

Step 3

Exam Tip

क्योंकि \(|x+1|\ge0\), इसलिए \(9-3|x+1|\le9\) और नीचे अनंत तक जा सकता है। परीक्षा में negative coefficient से range की दिशा बदलती है।

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Mathematics Answer, Explanation and Revision Hints

फलन (f(x)=9-3|x+1|) की रेंज क्या है? / What is the range of (f(x)=9-3|x+1|)?

Correct Answer: A. (\(-\infty,9]\). Explanation: क्योंकि \(|x+1|\ge0\), इसलिए \(9-3|x+1|\le9\) और नीचे अनंत तक जा सकता है। परीक्षा में negative coefficient से range की दिशा बदलती है। / Since \(|x+1|\ge0\), \(9-3|x+1|\le9\) and can go down without bound. In exams a negative coefficient changes the range direction.

Which concept should I revise for this Mathematics MCQ?

Since \(|x+1|\ge0\), \(9-3|x+1|\le9\) and can go down without bound. In exams a negative coefficient changes the range direction.

What exam hint can help solve this Mathematics question?

क्योंकि \(|x+1|\ge0\), इसलिए \(9-3|x+1|\le9\) और नीचे अनंत तक जा सकता है। परीक्षा में negative coefficient से range की दिशा बदलती है।