To determine if the point (1, 2) satisfies the inequality 2x + 9y ≥ 20, we substitute the values of x and y from the point into the inequality:
2(1) + 9(2) ≥ 20
2 + 18 ≥ 20
20 ≥ 20
Since 20 is equal to 20, the inequality is true when x = 1 and y = 2.
Does(1, 2)maketheinequality2x + 9y ≥ 20true?
1 answer