Difficult math question!

<p>hey there cc'ers!</p>

<p>could ya'll solve this ridiculously weird math question:</p>

<p>Sat</a> Question</p>

<p>thanks :)</p>

<p>Point A has coordinate x = -4.
Since x^2 + y^2 = 25, therefore: (-4)^2 + (3)^2 = 25, and y = 3.</p>

<p>So Point A has coordinates (-4,3)</p>

<p>Now connect point A to the center of circle O. What is the slope of line AO? Since it passes through the origin, its slope is y/x = 3/-4 or - 3/4</p>

<p>And since AO is perpendicular to line L, therefore, slope of line L times slope of line AO = -1</p>

<p>mL x -3/4 = -1 therefore mL = 4/3</p>