असमानताओं \(x\geq 2\), \(y\geq 1\), \(x\leq 6\), \(y\leq 5\), \(x+y\leq 8\) के हल-क्षेत्र में कितने शीर्ष हैं?
How many vertices are in the solution region of \(x\geq 2\), \(y\geq 1\), \(x\leq 6\), \(y\leq 5\), and \(x+y\leq 8\)?
Explanation opens after your attempt
C. (5)
Concept
The rectangle \([2,6]\times[1,5]\) is cut by the line (x+y=8). The corners are ((2,1)), ((6,1)), ((6,2)), ((3,5)), and ((2,5)).
Why this answer is correct
The correct answer is C. (5). The rectangle \([2,6]\times[1,5]\) is cut by the line (x+y=8). The corners are ((2,1)), ((6,1)), ((6,2)), ((3,5)), and ((2,5)).
Exam Tip
आयत \([2,6]\times[1,5]\) को रेखा (x+y=8) काटती है। कोने ((2,1)), ((6,1)), ((6,2)), ((3,5)), ((2,5)) हैं।
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