Match the following. 1 .
exponential function
decline of a quantity that is directly proportional to the amount present
2 .
exponential growth
y
=
a
x
, where a is greater than zero but not equal to 1 and x is an exponent
3 .
exponential decay
growth of a quantity that is directly proportional to the amount present

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?