Question

A baby was born with a weight of 10 pounds and then began to gain 2 pounds per month. Write an equation for W,W, in terms of t,t, representing weight, in pounds, of the newborn baby tt months after birth.

Answer 1

w(t)=2t

Explanation:

weight=2 pounds

Rate=monthly

Required:

Determine the weight of the baby in t months

When baby is 1 month old, t=1;

weight =2 pounds * 1

weight =2 pounds

When the baby is 2 months old, t=2;

weight =2 pounds*2

weight =4 pounds

When the baby is t months old,

weight =2 pounds *t

weight =2t pounds

Represent weight as a function of t

w(t)=2t