alyson413 alyson413

02-02-2017
Mathematics

contestada

solve for y. x-4=y^2

Respuesta :

02-02-2017

x - 4 = y^2
Since you want y to the first power you have to take the square root of y^2.
If you take the square root of the right side you also must take the square root of the left side.
+ - sqrt (x-4) = y
y = sqrt (x - 4)
and y = - sqrt (x - 4)

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