Is (


4,

5) a solution to this system of equations?
y=

2x–13
y=

x+1

1 answer

To determine if the point \((-4, -5)\) is a solution to the system of equations, we need to substitute \(x = -4\) and \(y = -5\) into both equations.

The equations are:

  1. \(y = -2x - 13\)
  2. \(y = -x + 1\)

For the first equation:

Substituting \(x = -4\) into \(y = -2x - 13\):

\[ y = -2(-4) - 13 \] \[ y = 8 - 13 \] \[ y = -5 \]

This matches \(y = -5\).

For the second equation:

Substituting \(x = -4\) into \(y = -x + 1\):

\[ y = -(-4) + 1 \] \[ y = 4 + 1 \] \[ y = 5 \]

This does not match \(y = -5\).

Since the point \((-4, -5)\) satisfies the first equation but not the second equation, it is not a solution to the system of equations.

Therefore, \((-4, -5)\) is not a solution to this system.