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I forgot how to find the coordinates of a vertex. It sucks.

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Were N00blet

 
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PostPosted: Thu Jul 30, 2009 11:31 pm


y= |x - 4| - 3

I forgot the formula. I tried to simplify it and got:

y = x + 1

But, that looks more like a linear eqauation. So, wtf?
PostPosted: Fri Jul 31, 2009 4:15 am


For those sorts of equations, the vertex will always be where the absolute value is zero, because that's where absolute value changes its behavior (from switching sign to keeping it). In other words, |x - 4| = 0 → x = 4 → y = -3. Thus, the vertex is at (4,-3).

VorpalNeko

 
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