Luis uses cubes to represent each term of a pattern based on a recursive function. The recursive function defined is f (n + 1) = f (n) + 4, where n is an integer and n ≥ 2. The number of cubes used in each of the first two figures is shown below. How many cubes does Luis use in the third, fourth, and fifth figures of the pattern? Fill in the blanks.

Figure 1: 9 cubes

Figure 2: 13 cubes

Figure 3: _cubes

Figure 4: _cubes

Figure 5: ___cubes

Question

Yair Frederick

12 September, 21:47

+4

Answers (2)

Know the Answer?

Jorden Cooke · Answer 1

Jorden Cooke 13 September, 00:26

0

17

21

24

It goes by fours

Amya Berry · Answer 2

Figure 3 is 17

figure 4 is 21

figure 5 is 25