Is (–4, 0) a solution to the equation y = x2 − 7x?

1 answer

To determine if the point \((-4, 0)\) is a solution to the equation \(y = x^2 - 7x\), we can substitute \(x = -4\) into the equation and see if \(y\) equals 0.

Starting with the equation:

\[ y = x^2 - 7x \]

Substituting \(x = -4\):

\[ y = (-4)^2 - 7(-4) \]

Calculating the terms:

\[ y = 16 + 28 \]

\[ y = 44 \]

Since when \(x = -4\), we find that \(y = 44\) and not \(y = 0\), the point \((-4, 0)\) is not a solution to the equation \(y = x^2 - 7x\).