THE CORRECT ANSWER IS (B). IF X > L, THEN |X – L| < K MEANS...
21. The correct answer is (B). If x > L, then |x – L| < K means x – L < K or x < L + K
If x < L, then |x – L| < K means L – x < K
or –x < K – L or x > L – K
so that L – K < x < L + K
21. The correct answer is (B). If x > L, then |x – L| < K means x – L < K or x < L + K
If x < L, then |x – L| < K means L – x < K
or –x < K – L or x > L – K
so that L – K < x < L + K