Let x = 6, y = 45.5X= 14, y= 105.5, and get the equation:

45.5=6k+b

105.5= 14k+b

Solution: k=7.5, b=0.5.

This function is: y=7.5x+0.5.

When x= 10, y=7.5× 10+0.5=75.5.

When the tail length of the snake is 10㎝, the length of the snake is 75.5㎝.