A) \[{{120}^{o}}\]
B) \[{{135}^{o}}\]
C) \[{{150}^{o}}\]
D) \[{{160}^{o}}\]
Correct Answer: B
Solution :
The gradient of the line \[y=x+2\]is 1. Therefore, it makes an angle of \[{{45}^{o}}\]with x-axis. The second line is parallel to x-axis. Hence the obtuse angle between the lines is\[{{135}^{o}}\].
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