Is (3, 5) a solution to this system of inequalities?

y < x + 6
y < 9x + 8

1 answer

To determine if the point \( (3, 5) \) is a solution to the system of inequalities given by:

  1. \( y < x + 6 \)
  2. \( y < 9x + 8 \)

we need to substitute \( x = 3 \) and \( y = 5 \) into both inequalities.

Checking the first inequality:

Substituting into \( y < x + 6 \):

\[ 5 < 3 + 6 \] \[ 5 < 9 \]

This is true.

Checking the second inequality:

Substituting into \( y < 9x + 8 \):

\[ 5 < 9(3) + 8 \] \[ 5 < 27 + 8 \] \[ 5 < 35 \]

This is also true.

Since both inequalities hold true for the point \( (3, 5) \), we conclude that \( (3, 5) \) is indeed a solution to the system of inequalities.