Tangent Lines - GMAT Quantitative Reasoning
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Question
Find the slope of the line tangent to circle 
at the point 
.
I) Circle
has a radius of 
units.
II) The area of circle f is 
.
Find the slope of the line tangent to circle
I) Circle
II) The area of circle f is
Answer
In this case, I and II give us a ton of information about the size of the circle, but we have no clue as to its location.
In order to know the slope of the tangent line, we need to know location of the circle, so we cannot solve this problem.
In this case, I and II give us a ton of information about the size of the circle, but we have no clue as to its location.
In order to know the slope of the tangent line, we need to know location of the circle, so we cannot solve this problem.
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