### Home > CAAC > Chapter 6 > Lesson 6.1.1 > Problem 6-10

6-10.

Ms. Cai's class is studying a tile pattern. The rule for the tile pattern is

*y*= 10

*x*− 18. Kalil thinks that Figure 12 of this pattern will have 108 tiles. Is he correct?

**Justify**your answer. Homework Help ✎

*y* = # of tiles*x* = Figure #

Substitute the information from the problem into the equation *y* = 10*x* − 18.

Kalil is wrong.

108 = 10(12) − 18

108 = 120 − 18

108 = 102 tiles