Is (2, 1) a solution to this system of inequalities?

6x + y > 13
4x + 9y ≤ 19

1 answer

To determine if the point (2, 1) is a solution to the system of inequalities, we need to substitute \( x = 2 \) and \( y = 1 \) into each inequality and check if the inequalities hold true.

  1. For the first inequality:

\[ 6x + y > 13 \]

Substituting \( x = 2 \) and \( y = 1 \):

\[ 6(2) + 1 > 13 \]

Calculating:

\[ 12 + 1 > 13 \implies 13 > 13 \]

This is not true, so the point (2, 1) does not satisfy the first inequality.

  1. For the second inequality:

\[ 4x + 9y ≤ 19 \]

Substituting \( x = 2 \) and \( y = 1 \):

\[ 4(2) + 9(1) ≤ 19 \]

Calculating:

\[ 8 + 9 ≤ 19 \implies 17 ≤ 19 \]

This is true, so the point (2, 1) satisfies the second inequality.

Since (2, 1) does not satisfy the first inequality, it is not a solution to the system of inequalities.