Question

An alligator is 9 inches long at birth and grows 10 inches per year. Write an equation that represents the length y (in feet) of an alligator that is x years old. How long will the alligator be after 4 years?

Answer 1

y = 5/6x + 3/4.

At 4 years old, the length y = 49/12 feet = 4 feet 1 inch.

Explanation:

9 inches = 3/4 feet.

10 inches = 5/6 feet

So our equations is

y = 5/6x + 3/4.

When it is 4 years old:

y = 5/6(4) + 3/4

= 20/6 + 3/4

= 49/12 feet

Answer 2

y=10x+9

after 4 years the gator will be 49 in long

Explanation: