Question

An animal is weighed at birth and each week after its birth. The equation for the line of best fit representing the growth of this animal is y=3.86x+15, where y represents its weight, in pounds, given the number of weeks, x, since birth. Which statement describes the y-intercept of the graph of y=3.86x+15?

Answer 1

Answer:The animal weighs 15 pounds at birth.

Explanation:

Answer 2

y-intercept is the weight of the animal at birth (when x = 0)

Explanation:

`y=3.86x+15`

The slope (gradient) of the function is 3.86

The y-intercept of the function is 15

Therefore, the y-intercept is the weight of the animal at birth (when x = 0)