LalaB wrote:
3. is already answered. no need to write down the same
4. If -3<x<5 and -7<y<9, which of the following represent the range of all possible values of y-x?
(y-x )min=Y min -Xmax =-7-5=-12
(y-x )max=Y max -Xmin =9-(-3)=12
D. -12<y-x<12 is the answer
Hi All,
Just a query, here why are we considering Ymin as -7 when the inequality states y lies between -7 and 9 but the greater than equal to sign is missing.
Pls help in case I am failing to understand a very basic concept .
Thanks
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