Question

Is the following relation a function?

Answer 1

are you still there?

Answer 2

yes

Answer 3

well, for each individual x there can be only one y

Answer 4

that is, if you want the relation to be a function.

Answer 5

for a relation to be a function, for one value of x ther should only be one value of x

Answer 6

another way to do this is to graph it

Answer 7

for x=-1, there are two values of y

Answer 8

exactly right akash.

Answer 9

making a graph would make this tedious

Answer 10

not really. only what four or five points, and remember, some people are more visual

Answer 11

@davisgurl101 did u get this

Answer 12

i dont under stand

Answer 13

but seeing the set would make it easy to solve, if u draw the graph then u have to dwar a line parallel to y -axis and see at how many points the line cuts the graph...

Answer 14

a relation is afunction if and only if a value of x in the relation corrospons to unique value of y...can u understand this definition

Answer 15

@davisgurl101 if u understand the above definition then you should have ur answer, if u don't ask ur doubt