फलन \(y=x^2+4x+1\) के ग्राफ का शीर्ष बिंदु कौन सा है?
What is the vertex of the graph \(y=x^2+4x+1\)?
Explanation opens after your attempt
A. ((-2,-3))
Concept
Completing the square gives (y=(x+2)2-3). Therefore the vertex is ((-2,-3)).
Why this answer is correct
The correct answer is A. ((-2,-3)). Completing the square gives (y=(x+2)2-3). Therefore the vertex is ((-2,-3)).
Exam Tip
पूर्ण वर्ग बनाने पर (y=(x+2)2-3) मिलता है। इसलिए शीर्ष ((-2,-3)) है।
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