Question

Is the ordered pair (-3,7) a solution to 7x - 9y < -10 ?
YES
No

Answer 1

Yes you sub so x=-21 then y=-63 and is less than -10

Answer 2

This is true so ( -3,7) is a solution

Explanation:

7x - 9y < -10

Substitute in the values for x and y and see if the inequality is true

7*-3 -9*7 < -10

-21 -63 < -10

-84 < -10

This is true so ( -3,7) is a solution