Question

cluded in the solution set.
rue
substitute -4 for x.
true
test another value included in the solution set.
-5 ≤ -4 true
x + 3 ≤ -1
-5 + 3 ≤ -1 substit
-2 ≤ -1
true
false
?

Explanation:

Step1: Analyze the inequality

We have the inequality $x + 3\leq - 1$. We substitute a value (here we can see the substitution of $x=-5$ is done as $- 5+3\leq - 1$ which simplifies to $-2\leq - 1$.

Step2: Determine the truth value

We know that on the number line, $-2$ is to the left of $-1$. For the inequality $a\leq b$, it is true if $a$ is less than or equal to $b$. Since $-2 < - 1$, the inequality $-2\leq - 1$ is true.

Answer:

TRUE