Question

{(x,y): |x|=|y| and |y| less than or equal to 2}

x and y are itnegers . find the domain of the relation and draw its graph. is the relation a function ?

Answer 1

hello ? any help

Answer 2

Note, writing this relation in a piece-wise form we obtain: \[\bf x= \pm |y|\]This clearly implies that the relation will not be a function.

Answer 3

i dont understamd ?

Answer 4

Ok I will give you an example:\[\bf |x|=3\]Solve for x.

@crombie

Answer 5

um

Answer 6

x= 3 or -3 ?

Answer 7

@genius12

Answer 8

Correct. So:\[\bf |x|=3 \implies x = \pm 3\]

Answer 9

Similarly:\[\bf |x|=|y| \implies x = \pm |y|\]Do you see what I did here

@crombie

Answer 10

no lol

Answer 11

whatsthat symbol thing mean ? @genius12

Answer 12

plus or minus,\[\bf \pm 3= +3 \ or \ -3\] @crombie

Answer 13

OHHH

Answer 14

how i learned it was you make an x and y chart

Answer 15

then you plug in the numbers

Answer 16

do you know how to do it that way ? can you teach me ?

Answer 17

i still dont udnerstand how to do the problem @genius12

Answer 18

Let's graph this table:Does that look like a function?

@crombie