फलन (f(x)=5-\sqrt{x+4}) के ग्राफ का परिसर क्या है?
What is the range of the graph of (f(x)=5-\sqrt{x+4})?
Explanation opens after your attempt
Correct Answer
A. (\(-\infty,5]\)
Concept
Since \(\sqrt{x+4}\ge0\), \(5-\sqrt{x+4}\le5\). In exams, a negative square-root term makes the graph go downward.
Why this answer is correct
The correct answer is A. (\(-\infty,5]\). Since \(\sqrt{x+4}\ge0\), \(5-\sqrt{x+4}\le5\). In exams, a negative square-root term makes the graph go downward.
Exam Tip
\(\sqrt{x+4}\ge0\) इसलिए \(5-\sqrt{x+4}\le5\)। परीक्षा में ऋणात्मक वर्गमूल के कारण ग्राफ नीचे जाता है।
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