The point (0,-2) is a solution to which system of equations?

(2 points)
Responses

-x+y=2
-x+2y=16

-x+y=2 -x+2y=16
-4x+y=6

-5x-y=21
-4x+y=6 -5x-y=21

-5x=y-3
3x-8y=24

-5x=y-3
3x-8y=24

-5x+y=-2
-3x+6y=-12

1 answer

To determine which system of equations the point \((0, -2)\) is a solution to, we will substitute \(x = 0\) and \(y = -2\) into each set of equations and verify if both equations in that system are satisfied.

  1. System 1:

    • \(-x + y = 2\) \[ -0 + (-2) = -2 \quad \text{(not satisfied)} \]
    • \(-x + 2y = 16\) \[ -0 + 2(-2) = -4 \quad \text{(not satisfied)} \]

    This system does not contain the point.

  2. System 2:

    • \(-5x - y = 21\) \[ -5(0) - (-2) = 2 \quad \text{(not satisfied)} \]
    • \(-4x + y = 6\) \[ -4(0) + (-2) = -2 \quad \text{(not satisfied)} \]

    This system does not contain the point.

  3. System 3:

    • \(-5x = y - 3\) \[ -5(0) = -2 - 3 \implies 0 = -5 \quad \text{(not satisfied)} \]
    • \(3x - 8y = 24\) \[ 3(0) - 8(-2) = 16 \quad \text{(not satisfied)} \]

    This system does not contain the point.

  4. System 4:

    • \(-5x + y = -2\) \[ -5(0) + (-2) = -2 \quad \text{(satisfied)} \]
    • \(-3x + 6y = -12\) \[ -3(0) + 6(-2) = -12 \quad \text{(satisfied)} \]

    This system does contain the point.

Thus, the correct system of equations that includes the point \((0, -2)\) is:

\[ -5x + y = -2 \] \[ -3x + 6y = -12 \]

So, the answer is -5x + y = -2 and -3x + 6y = -12.