tito1545 wrote:Could anyone give me a step by step sol to this problem please .Why is the answer not C instead of E ????
Circle C and line k lie in the xy plane. If circle C is centered at the origin and has a radius of 1, does the line k intersect circle C?
1.The x intercept of the line k is greater than 1
2.The slope of the line k is -1/10
X-intercept is greater than 1, slope = -1/10, line k intersects circle C:
X-intercept is greater than 1, slope = -1/10, line k does not intersect circle C:
Thus, the 2 statements combined are insufficient to determine whether line k intersects circle C.
The correct answer is
E.
Last edited by
GMATGuruNY on Tue Mar 08, 2011 2:41 pm, edited 1 time in total.
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