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Mathematics 16 Online
OpenStudy (anonymous):

Draw a diagram to show that there are two tangent lines to the parabola y = x^2 that pass through the point (0,-4). Find the coordinates of the points where these tangent lines intersect the parabola. help

OpenStudy (accessdenied):

|dw:1331177573373:dw| something like that for a diagram; sorry its not that great, its hard to draw parabolas with mouse. ;P

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