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Mathematics 15 Online
OpenStudy (anonymous):

....

jimthompson5910 (jim_thompson5910):

First let's graph 3x + 2y = –5 3x + 2y = –5 2y = –5 - 3x 2y = -3x –5 y = -3/2x –5/2 So this is a line that starts at (0, -5/2) and goes down 3 and over 2 to get the next point.

jimthompson5910 (jim_thompson5910):

The line is a dashed line The slope is negative. So that rules out choices C and D

jimthompson5910 (jim_thompson5910):

Let's see if the origin is in the solution set 3x + 2y > –5 3(0) + 2(0) > –5 0 + 0 > -5 0 > -5 which is true So (0,0) is in the shaded region So this means we shade above the dashed line

OpenStudy (anonymous):

B?

jimthompson5910 (jim_thompson5910):

good catch, it is B

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