An explicit definition of a function f gives an algorithmic procedure, usually given by an algebraic formula, that produces the output (dependent variable) of f for a given input (independent variable); for example, f(x) = x2.
Golden Retrievers are 1 foot 9 inches tall to 2 feet tall. You can say they are of medium size. They weigh 55 to 75 pounds and live for 10 to 12 years. I hope this will help you. Regards, Perrie Jinnie Pet Grooming Tips
And remember, if you were using a slow growth plan (i.e. not using puppy food or other methods), it will take longer. People are so used to seeing big, over-sized Goldens. Goldens are not a large breed. The weight range for a female is 55 to 65 pounds. If she is 42 at age 7 months, I think she will get there just fine. Males are 65 to 75 pounds. Gilmour, coming up on 17 months, is right at 65 pounds. Milo, who is 3 months younger, is over 80 pounds. Gilmour is the proper size.