Which of the following cannot be in the solution set of w/-2 < 1? a) -1 b) 1 c) -2 d) 2

Answer is c. -2 (cannot be in the solution set of w/-2)

because.

a) -1/-2 = 1/2 and 1/2 < 1

b) 1/-2 = -1/2 and -1/2 <1

d) 2/-2 = -1 and -1 <1

but

c) -2/-2 = 1 and 1 = 1

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)