Question

(b) the amount of water in a fish tank is between 8 liters and 15 liters, inclusive. use a for the amount of water in liters. inequality: 8 ≤ a ≤ 15 graph:

Explanation:

Step1: Interpret the 'in - clusive' condition

The amount of water $a$ is at least 8 liters (so $a\geq8$) and at most 15 liters (so $a\leq15$).

Step2: Combine the inequalities

Combining gives $8\leq a\leq15$.

Step3: Graph the inequality

On a number - line, we use a closed circle at 8 (since $a$ can equal 8) and a closed circle at 15 (since $a$ can equal 15), and shade the region between them.

Answer:

The inequality is $8\leq a\leq15$. On the number - line, place a closed circle at 8, a closed circle at 15, and shade the region between 8 and 15.