Which is the graph of the inequality? y 2x + 3

A http://static.k12.com/calms_media/media/212500_213000/212762/1/6cd1227a6b58a1bee65fcf447a7258ba2c301420/ALGTests_L2_S1_U7_Q11_C.gif
B http://static.k12.com/calms_media/media/212500_213000/212761/1/80f36633d89230f89b3dc1aed488f9a90153510d/ALGTests_L2_S1_U7_Q11_B.gif
C http://static.k12.com/calms_media/media/212500_213000/212760/1/bd8c79fe8e6579dabd7e252ee24a6aa4c3454b4f/ALGTests_L2_S1_U7_Q11_A.gif
D http://static.k12.com/calms_media/media/212500_213000/212763/1/666994f5d570589fc2225d508cdab9b8be24c7da/ALGTests_L2_S1_U7_Q11_D.gif

Question

Which is the graph of the inequality? y > 2x + 3 

A http://static.k12.com/calms_media/media/212500_213000/212762/1/6cd1227a6b58a1bee65fcf447a7258ba2c301420/ALGTests_L2_S1_U7_Q11_C.gif 
B http://static.k12.com/calms_media/media/212500_213000/212761/1/80f36633d89230f89b3dc1aed488f9a90153510d/ALGTests_L2_S1_U7_Q11_B.gif 
C http://static.k12.com/calms_media/media/212500_213000/212760/1/bd8c79fe8e6579dabd7e252ee24a6aa4c3454b4f/ALGTests_L2_S1_U7_Q11_A.gif
 D http://static.k12.com/calms_media/media/212500_213000/212763/1/666994f5d570589fc2225d508cdab9b8be24c7da/ALGTests_L2_S1_U7_Q11_D.gif

anonymous · Answer

1. Plot the formula by changing the inequality into an equation. Then plot...

- Less/greater than sign corresponds to broken line
- Less/greater than or equal to sign corresponds to solid line

2. Try substituting x at the left of the inequality by any point in the cartesian plane. If its true then the shaded part is on that particular side, if not its on the other side...