MATH1050: Functions
Instructor: Laura Strube
Name:
Student ID:
Answer the questions in the spaces provided or copy the questions neatly on
your own paper
1. (5 points) Suppose f : R → R is defined by f (x) =
(a) What is f (0)? [Show your work]
(b) What is f (−2)? [Show your work]
(c) What is f (2)? [Show your work]
1
6
2(x+1)
2. (5 points) Exercises 9 and 10 in the text asked questions about the number of treats
necessary to call a puppy on a walk.
(a) What is the domain of this “puppy function”?
(b) What is the range of this “puppy function”?
(c) The range of the “puppy function” is a subset of what class of numbers?