Question

Which expression is equivalent to|a| ≤3
a ≥ –3 and a ≤ 3
a ≤ –3 and a ≥ 3
a ≥ –3 or a ≤ 3
a ≤ –3 or a ≥ 3

Answer 1

|a| = \(\pm a\) Therefore it can be written \[-a \le 3\]\[a \le 3\]When you divide by a negative, you flip the sign, so \(-a \le 3 \implies a \ge -3\)

Answer 2

So what do you think your answer choice would be?