Is (–1, –1) a solution to the equation y = x2 − 6?

1 answer

To determine if \((-1, -1)\) is a solution to the equation \(y = x^2 - 6\), we need to substitute \(x = -1\) into the equation and see if it equals \(y = -1\).

Starting with the equation:

\[ y = x^2 - 6 \]

Substituting \(x = -1\):

\[ y = (-1)^2 - 6 \]

Calculating \((-1)^2\) gives us:

\[ y = 1 - 6 \]

Now, simplifying:

\[ y = -5 \]

We found \(y = -5\) when \(x = -1\). Since we expected \(y\) to be \(-1\) for the point \((-1, -1)\), we see that:

\[ (-1, -1) \neq (-1, -5) \]

Thus, \((-1, -1)\) is not a solution to the equation \(y = x^2 - 6\).