{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

PS1-solutions

# PS1-solutions - Econ 300 Solutions to Problem Set 1 Julien...

This preview shows pages 1–2. Sign up to view the full content.

Econ 300 - Solutions to Problem Set 1 - Julien Bengui 2.1.2 (a) Yes, this is a function. It maps each x in the domain into one and only one y in the range. (b) No, this is not a function. It maps each x in the domain into more than one y . For instance, for x = 2, we can have y = 1 but also y = 0 or any other number smaller or equal to 2. (c) Yes, this is a function. It maps each x in the domain (which is restricted to the interval (0 , )) into one and only one y in the range. (d) Yes, this is a function. It maps each x in the domain into one and only one y in the range. Note however that it is not a invertible function (it is not one-to-one). (e) No, this is not a function. For any strictly positive x , we have two associated y ’s, while for any strictly negative x , there is no y fulfilling the condition. (f) Yes, this is a function, but we need to exclude x = 3 from its domain. This is because 1 x - 3 is not defined for x = 3. (g) No, this is not a function. For any x in the domain, there will be two associated y ’s (for example for x = 2, we have y

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern