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Mathematics 22 Online
OpenStudy (tennisthegreat123):

Help please !! 8. Which conjunction or disjunction is equivalent to | x + 2 | < 7? a) x + 2 < 7 and x + 2 > -7 b) x + 2 < 7 or x + 2 < -7 c) x + 2 > 7 and x + 2 < -7

OpenStudy (katara11111):

Okay what part do you not understand?

OpenStudy (tennisthegreat123):

the absolute value part like pretty much everything

OpenStudy (katara11111):

Okay so absolute value means no matter what number is in the || that it will be positive so |-x| = x

OpenStudy (tennisthegreat123):

yeah

OpenStudy (tennisthegreat123):

so what do i do to get the answer

OpenStudy (katara11111):

|x+2| can never be negative. What results can you exclude because of that?

OpenStudy (tennisthegreat123):

well idk bc all the answers ave a negative

Vocaloid (vocaloid):

hint: | x | < A means that - A < x < A so following the pattern what does | x + 2 | < 7 mean?

OpenStudy (tennisthegreat123):

x < 5?

Vocaloid (vocaloid):

nope, follow the pattern i gave you.

Vocaloid (vocaloid):

|dw:1461290544716:dw|

Vocaloid (vocaloid):

|dw:1461290560401:dw|

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