Posted by **Meg** on Sunday, September 12, 2010 at 7:12pm.

If the distance from the point (5,k) to the line 8x - 15y + 8 + 0 is 20, find k. Recall that the formula to compute the distance between a point (x1,y1) and a line ax + by + c = 0 is

d= abs(ax1+by1+c) [over or divided by] square root(a^2+b^2)

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