Question 667924
 on the graph it shows the equation y^4=x
Comment: Notice that x is a number raised to an even power;
so x is never negative.
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(a)at how many points does x=4
If x = 4, y = 4^(1/4) which can be both positive and negative.
ANS: 2
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(b) at how many points does x=-4
x Cannot be negative
Ans: 0
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Cheers,
Stan H.

You do not have to find the value of these points,just tell how many there are