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Mathematics 15 Online
OpenStudy (anonymous):

Which of the following points lie in the solution set to the following system of inequalities? y < -3x + 3 y < x + 2 (1, -5) (1, 5) (5, 1) (-1, 5) Fan and Medal!! @texaschic101 @campbell_st

OpenStudy (anonymous):

@Coolsector @KlOwNlOvE @ganeshie8 @Hero

OpenStudy (campbell_st):

and easy thing is substitute a point into the 1st inequality... if it's true test it in the 2nd.. if false discard it and go to the next point e.g. ( 1, -5) so is - 5 < -3*1 + 3...? this is true so try the other inequality with x = 1 , y = -5

OpenStudy (anonymous):

it would be y=1+(-10)

OpenStudy (anonymous):

so -5<-9 so its not true? @campbell_st

OpenStudy (campbell_st):

if you make the substitution into the 2nd inequality its -5 < 1 + 2 true or false.... it it's true you have a solution

OpenStudy (anonymous):

Nvm i got it the answer is A @campbell_st

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