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Mathematics 7 Online
OpenStudy (anonymous):

can someone help with this? X_x Write the linear inequality shown in the graph.

OpenStudy (anonymous):

sam (.sam.):

you know that the equation is something like y=3x PLUS 4, the PLUS 4 shows that the y-intercept in 4

sam (.sam.):

So the answer could be A or B

sam (.sam.):

then the sign must be less than or equal because the region is in the left side

OpenStudy (anonymous):

yeah, i'm just not sure of the signs. :/

OpenStudy (anonymous):

like, how to tell when its greater than less than x_X

OpenStudy (callisto):

Hmm.. one of the method I used in doing this type of question is to choose a point to test it. For example, take (0,0) as the testing point. LS =y =0 RS = -3(0)+4 = 4 So, LS< RS And you can deduce the direction of the inequality sign~

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