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OpenStudy (anonymous):
i really need help with this one question!!!!
OpenStudy (lgbasallote):
what's the question?
OpenStudy (anonymous):
Tell whether the ordered pair is a solution of the inequality.
1.
y < 4x; (3, 0) (1 point)
solution
not a solution
2.
y > -x – 1; (2, -3) (1 point)
solution
not a solution
3.
y< 4x – 2; (-1, 1) (1 point)
solution
not a solution
OpenStudy (lgbasallote):
y < 4x; (3, 0)
to verify we substitute 3 into x and 0 into y
0 <4(3)
0 < 12
is this true?
OpenStudy (anonymous):
no?
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OpenStudy (anonymous):
o isnt bigger then 12
OpenStudy (lgbasallote):
< means less than
OpenStudy (lgbasallote):
0 < 12 means 0 is less than 12. is that true?
OpenStudy (anonymous):
yeah
OpenStudy (lgbasallote):
then it's a solution
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OpenStudy (anonymous):
thanks?
OpenStudy (lgbasallote):
<tips hat>
OpenStudy (anonymous):
thzt only for the first one or is it not even for one of them?
OpenStudy (lgbasallote):
y > -x – 1; (2, -3)
substitute 2 into x and -3 into y
-3 > -(2) - 1
-3> -2 - 1
-3>-3
is this true?
OpenStudy (anonymous):
yes
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OpenStudy (anonymous):
i think
OpenStudy (lgbasallote):
-3 is greater than -3?
OpenStudy (anonymous):
no they = so i was right it not a sloution?
OpenStudy (lgbasallote):
yup
OpenStudy (lgbasallote):
so what do you think is the answer for the rest?
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OpenStudy (anonymous):
uhhhhh ? not
OpenStudy (lgbasallote):
just try..
OpenStudy (anonymous):
SOLUTION!!!!!!!!!!!!
OpenStudy (lgbasallote):
y< 4x – 2; (-1, 1)
if you substitute
1 < 4(-1) - 2
1<-4 - 2
1<-6
OpenStudy (lgbasallote):
so is it a solution?
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