Mathematics
Graphs, Functions and Applications #19

### Question Description

Determine whether the relation is a function.

{(-5, -4), (-2, 9), (-1, -2), (-1, 7)}

here the point x=-1 is mapped a first time into the point y= -2, and it is mapped a second time into the point y= 7. Now That can not possible for a function, so in order to get a function, we can write, for example, your relation, as follows:

{(-5, -4), (-2, -9), (-1, 2), (k, 7)}

where, of course k is a rela number different from -1

Michele L (1020)
Duke University
Review

Anonymous
Top quality work from this tutor! I’ll be back!

Anonymous
Just what I needed… fantastic!

Anonymous
Use Studypool every time I am stuck with an assignment I need guidance.

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors