Sec 3/4 E Math T02-Q18 - Finding bounds of a linear expression

Sec 3/4 E Math T02-Q18 - Finding bounds of a linear expression

Secondary 3
Original parallel to Sec3&4 E Math FA

It is given that \(-2\le x\le 5\) and \(1\le y\le 5\).

  1. Find the least possible value of \(2x-3y\).
  2. Find the greatest possible value of \(2x-3y\).

Solution:

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Answer:(a) \(-19\); (b) \(7\).

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