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Mathematics 42 Online
OpenStudy (anonymous):

please help! Check all of the points that are solutions to the system of inequalities. y>4x + 2 y<4x + 5 A.(4, 21) B.(5, 24) C.(5, 26) D.(-4, 20) are the answers B & D?

OpenStudy (anonymous):

24 > 4*5 + 2 ? 20 < 4*(-4) + 5 ? I don't think so

OpenStudy (anonymous):

C is good for the 1st 26 > 4*5 + 2

OpenStudy (anonymous):

B si good for the 2nd 24 < 4*5 + 5

OpenStudy (anonymous):

so A and B

OpenStudy (anonymous):

when you have an order pair (x,y) the first number is x and the second is y

OpenStudy (anonymous):

Simply replace x and y in the inequalities

OpenStudy (anonymous):

C (5,26) is good for the 1st 26 > 4*5 + 2

OpenStudy (anonymous):

B(5,24) is good for the 2nd 24 < 4*5 + 5

OpenStudy (anonymous):

The answer is B and C

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