Question

Determine whether the relation is a function. http://roads.advancedacademics.com/contentserver/content/roadssection/277820/questions/4-exam4/mapping_50.gif

A. function
B. not a function

Answer 1

Look at how the numbers are paired: 6 is paired with -5 so that gives you the ordered pair (6.-5) Now you list the other ordered pairs. There are 3 others.

Answer 2

B because for a single x value, in this case 2 you have two result

Answer 3

Oh for heavens sake descriptor. How is she going to learn?

Answer 4

so, a function, in a two dimension, have a dipendent and an indipendent variable, the x is the indipendent because we choose it, for every choose of x, we associate a "single" y value calculated by a formula, called function, in this case, a single x produce more than one y value, so this is not a function ;)