The weight of a newborn is 7.5 pounds. The baby gained one-half pound a month constantly for its first year. a) Find the linear function that models the baby’s weight, W, as a function of the age of the baby, in
months, t.

b) Find a reasonable domain and range for the function W.

c) If the function W is graphed, find and interpret the x- and y-intercepts.

d) If the function W is graphed, find and interpret the slope of the function.

e) When did the baby weight 10.4 pounds?

f) What is the output when the input is 6.2? Interpret your answer.