Is (2, –6) a solution to this system of inequalities?

y

1
2
x
− 7

y ≤ –8

1 answer

To determine if the point (2, -6) is a solution to the system of inequalities, we will substitute \( x = 2 \) and \( y = -6 \) into both inequalities.

  1. For the first inequality:

\[ y \geq \frac{1}{2}x - 7 \]

Substituting \( x = 2 \) and \( y = -6 \):

\[ -6 \geq \frac{1}{2}(2) - 7 \]

Calculating the right side:

\[ -6 \geq 1 - 7 \] \[ -6 \geq -6 \]

This inequality is true.

  1. For the second inequality:

\[ y \leq -8 \]

Substituting \( y = -6 \):

\[ -6 \leq -8 \]

This inequality is false.

Since the point (2, -6) satisfies the first inequality but does not satisfy the second inequality, it is not a solution to the system of inequalities.

Thus, the answer is no, (2, –6) is not a solution to this system of inequalities.