यदि (p(x)=5x-2+20x+23) है, तो ग्राफ (x)-अक्ष के सापेक्ष कैसा होगा?
If (p(x)=5x-2+20x+23), how will the graph be with respect to the (x)-axis?
Explanation opens after your attempt
C. नहीं काटेगाIt will not cut
Concept
The discriminant is (400-460=-60), so there are no real zeroes. Tip: with negative discriminant a parabola does not meet the (x)-axis.
Why this answer is correct
The correct answer is C. नहीं काटेगा / It will not cut. The discriminant is (400-460=-60), so there are no real zeroes. Tip: with negative discriminant a parabola does not meet the (x)-axis.
Exam Tip
विविक्तकर (400-460=-60) है, इसलिए वास्तविक शून्यक नहीं हैं। टिप: ऋणात्मक विविक्तकर पर परवलय (x)-अक्ष से नहीं मिलता।
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