Solve for q.∣q+8∣≤2Write a compound inequality like 1 < x < 3 or like x < 1 or x > 3. Use integers, proper fractions, or improper fractions in simplest form.______
Q. Solve for q.∣q+8∣≤2Write a compound inequality like 1<x<3 or like x<1 or x>3. Use integers, proper fractions, or improper fractions in simplest form.______
Absolute Value Definition: We have the inequality ∣q+8∣≤2. To solve for q, we need to consider the definition of absolute value, which states that ∣x∣=x if x≥0 and ∣x∣=−x if x < 0. Therefore, the inequality ∣q+8∣≤2 means that q+8 is at most 2 units away from 0 on the number line, in either direction.
Non-Negative Case: First, we consider the case where q+8 is non-negative. In this case, we can drop the absolute value without changing the sign:q+8≤2Now, we solve for q by subtracting 8 from both sides:q+8−8≤2−8q≤−6
Negative Case: Next, we consider the case where q+8 is negative. In this case, we must change the sign when we remove the absolute value:−(q+8)≤2Now, we distribute the negative sign and solve for q:−q−8≤2−q≤2+8q≥−10 (after multiplying both sides by −1, we must reverse the inequality sign)
Compound Inequality: Combining both cases, we have a compound inequality that represents all possible values of q that satisfy the original inequality:−10≤q≤−6This compound inequality includes both the case where q+8 is non-negative and the case where q+8 is negative.
More problems from Solve absolute value inequalities