Answer
a. Q(2): 4 $\leq$ 30 is true.
Q(-2): 4 $\leq$ 30 is true.
Q(7): 49 $\leq$ 30 is false.
Q(-7): 49 $\leq$ 30 is false.
b. If the domain of Q(n) is the set of all integers, then its truth set is {−5, −4, −3, −2, −1, 0, 1, 2, 3, 4, 5}.
c. If the domain of Q(n) is the set of all positive integers, then its truth set is {1, 2, 3, 4, 5}.
Work Step by Step
The truth set for P(x) with domain D is the set of all elements in D for which P(x) is true.