Question

chris said that the numbers (-9, -10, -11) be in the solution set for the inequality (x < -9). explain if chris answer is correct.

Explanation:

Step1: Analyze the inequality

The inequality is \(x < - 9\).

Step2: Check each number

For \(x=-9\), \(-9=-9\) and does not satisfy \(x < - 9\). For \(x = - 10\), since \(-10<-9\), it satisfies the inequality. For \(x=-11\), since \(-11 < - 9\), it satisfies the inequality. But \(-9\) is not in the solution - set of \(x < - 9\), so Chris is incorrect as he included \(-9\).

Answer:

Chris' answer is incorrect.