20 POINTS AND BRAINLIEST
The weight of a puppy was monitored for the first year of its life. The weight, in grams, of the puppy has a strong linear relationship with the number of months, x, since
birth. The relationship can be modeled by the function f(x) = 1,200x + 400. What is the meaning of the y-intercept of the function?
A. The puppy weighed about 400 grams at birth
B. The puppy weighed about 1200 grams at birth
C. The weight of the puppy increases by about 400 grams per month
D. The weight of the puppy increases by about 1200 grams per month