SOLUTION: The obtuse angle b/w the line y=-2 and y=x+2

Question 985866: The obtuse angle b/w the line y=-2 and y=x+2
Answer by Edwin McCravy(20055) (Show Source): You can put this solution on YOUR website!
The obtuse angle b/w the line y=-2 and y=x+2


The slope of y=-2 is m=0 because in slope-intercept form it's y = 0x-2, and
the coefficient of x is 0.

The slope of y=x+1 is m=1 because the coefficient of x is 1


, taken positive when we want the acute angle, 
and negative when we want the obtuse angle. 




We take the negative value since we want the obtuse angle:



 


Edwin

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