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Mathematics 16 Online
OpenStudy (anonymous):

Which number serves as a counterexample to the statement below? 2x<3x -2 1 fourth ½ 2

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 ?

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. ?

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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