Ok I'm a little confused with this:(adsbygoogle = window.adsbygoogle || []).push({});

16x-y^4=0

When you solve for (y) you get: y= plus/minus 4th root(16x) right?

There for it isn't a function.

What about y=sq.rt.(1-x)? Does it have the plus/minus automatically? Do you only put the plus/minus sign if you solve for y?

I just don't get when you have to put the plus/minus in front of the sq.rt. Do you always have to put one there? or only if you solve for y, etc.?

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# Ok I'm a little confused with this: 16x-y^4=0

**Physics Forums | Science Articles, Homework Help, Discussion**