Write as a Function of x y^2-x=1

$y^{2} - x = 1$

Step 1

Add $x$ to both sides of the equation.

$y^{2} = 1 + x$

Step 2

Take the specified root of both sides of the equation to eliminate the exponent on the left side.

$y = \pm \sqrt{1 + x}$

Step 3

The complete solution is the result of both the positive and negative portions of the solution.

First, use the positive value of the $\pm$ to find the first solution.

$y = \sqrt{1 + x}$

Next, use the negative value of the $\pm$ to find the second solution.

$y = - \sqrt{1 + x}$

The complete solution is the result of both the positive and negative portions of the solution.

$y = \sqrt{1 + x}$

$y = - \sqrt{1 + x}$

$y = \sqrt{1 + x}$

$y = - \sqrt{1 + x}$

Step 4

To rewrite as a function of $x$ , write the equation so that $y$ is by itself on one side of the equal sign and an expression involving only $x$ is on the other side.

$f (x) = \sqrt{1 + x}, - \sqrt{1 + x}$

Write as a Function of x y^2-x=1

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