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OpenStudy (anonymous):
Which number serves as a counterexample to the statement below?
2x<3x
-2
1 fourth
½
2
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OpenStudy (danjs):
if the variable is less than 0, that changes things
OpenStudy (danjs):
look at + vs - x values and see which can be true
OpenStudy (anonymous):
What exactly is a counterexample @DanJS
jhonyy9 (jhonyy9):
when give value to x and not will get 2x smaller than 3x so will get 2x greater then 3x
ok.?
jhonyy9 (jhonyy9):
so you know for what value of x will get 2x greater than 3x ?
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jhonyy9 (jhonyy9):
try the first value of x so -2 what will get ?
jhonyy9 (jhonyy9):
2*(-2)<3*(-2) this is true ?
OpenStudy (anonymous):
-4 < -6
OpenStudy (anonymous):
and no it's not true
jhonyy9 (jhonyy9):
so than this mean that this is the counterexample what you need to get it
ok. ?
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OpenStudy (anonymous):
Perfect, thanks
jhonyy9 (jhonyy9):
was my pleasure
hope so much that you understand it now how you solve the same exercises - yes ?
OpenStudy (danjs):
an example will show that the thing is true,
counter example will show the opposite
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