Question

Consider the two patterns described below.

Pattern Rule Starting
Number
K Add 18 0
L Add 9 0

Which of the following sentences describes the relationship between the corresponding terms in the two patterns?
A.
The terms in pattern L are 9 less than the corresponding terms in pattern K.

B.
The terms in pattern L are 2 times the size of the corresponding terms in pattern K.

C.
The terms in pattern L are 9 more than the corresponding terms in pattern K.

D.
The terms in pattern L are 2 times smaller than the corresponding terms in pattern

Answer 1

D.

For the nth term (starting with the first term = 0) K_n = 18(n−1) and L_n = 9(n−1), so L_n = 1/2 · K_n — each term of L is half (i.e. "2 times smaller") than the corresponding term of K.