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If x is positive and y is 1 less than the square of x, which
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15 Jun 2018, 15:19
15 Jun 2018, 15:19
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If x is positive and y is 1 less than the square of x, which of the following expresses x in terms of y ?
(A) \(x = y^2 - 1\)
(B) \(x = y^2 + 1\)
(C) \(x = \sqrt{y} + 1\)
(D) \(x = \sqrt{1-y}\)
(E) \(x= \sqrt{y+1}\)
(A) \(x = y^2 - 1\)
(B) \(x = y^2 + 1\)
(C) \(x = \sqrt{y} + 1\)
(D) \(x = \sqrt{1-y}\)
(E) \(x= \sqrt{y+1}\)
Re: If x is positive and y is 1 less than the square of x, which
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16 Jun 2018, 06:52
16 Jun 2018, 06:52
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Carcass wrote:
If x is positive and y is 1 less than the square of x, which of the following expresses x in terms of y ?
(A) \(x = y^2 - 1\)
(B) \(x = y^2 + 1\)
(C) \(x = \sqrt{y} + 1\)
(D) \(x = \sqrt{1-y}\)
(E) \(x= \sqrt{y+1}\)
(A) \(x = y^2 - 1\)
(B) \(x = y^2 + 1\)
(C) \(x = \sqrt{y} + 1\)
(D) \(x = \sqrt{1-y}\)
(E) \(x= \sqrt{y+1}\)
x is +ve, then y = x^2 - 1
then x in terms of y => y + 1 = x^2
=> \(x= \sqrt{y+1}\)
E.
Re: If x is positive and y is 1 less than the square of x, which
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15 Dec 2021, 03:21
15 Dec 2021, 03:21
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