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Mathematics 8 Online
OpenStudy (anonymous):

Consider the graph of y=I2xI+5. For what value(s) of x is y<=13? a.x<=-4 or x>=4 b.x>=4 c.-4<=x<=4 d.x<=-4

OpenStudy (anonymous):

solve it algebraically: |2x| + 5 <= 13 |2x| <= 8 this means: 2x <= 8 AND 2x >=-8 x <= 4 AND x >= -4 another way to write out this conjunction is option C.

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