Sunday, February 14, 2016

What are integer elements of set B is they have the property |x-2|

To discover the elements of the set, we'll have to solve
the inequality. We'll recall the property of absolute
value:


|x|<c <=> -c < x
< c


According to this property, we'll
have:


-3 < x - 2 <
3


We'll solve the left
inequality:


-3 < x -
2


We'll isolate x to the
right:


-3 + 2 < x


-1
< x


We'll solve the right
inequality:


x - 2< 3


x
< 3 + 2


x <
5


The integer element located between -1 and 5, except the
values -1 and 5, are: {0 , 1 , 2 , 3 ,
4}.


Therefore, the elements of the set B,
whose property is |x - 2|<  3 are {0 , 1 , 2 , 3 ,
4}.

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