Question

Each tile has a perimeter of 4 units. If Lucy connects 2 tiles, she makes a rectangle with a perimeter of 6 units. If she connects 6 tiles to form a rectangle, what is the perimeter of Lucy's new rectangle? (​

Answer 1

This problem can be solved with the equation 2x+2, where x = the number of tiles.

f(x)=2x+2, f(6)=2(6)+2

2(6)+2=14

the perimeter of the rectangle is 14 units.