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4-65.

For a tile pattern with the rule y = 6x + 4 (where x represents the figure number and y represents the number of tiles), which figure number has 40 tiles in it? How do you know? Homework Help ✎

Given information:
y = number of tiles
x = figure number
40 tiles

Substitute in the given information.

number of tiles = 6( figure number ) + 4

40 = 6x + 4

x = Figure 6

Check your answer.