Question

Graph the solution of y – 2 > 1 on a number line. i know the answer is y > 3 but it that an open or closed circle? i forgot :/

Answer 1

It's an open circle because you are NOT including the endpoint y = 3

Answer 2

Basically there's a hole at y = 3

Answer 3

when is open or closed circle used?

Answer 4

@panlac01 when it is included then it's closed but when not included its open...

Answer 5

thanks alex, I am asking cwash :)

are you also allowed to use a [ ] or ( )?

Answer 6

thank you and @panlac01 what do u mean by are you also allowed to use a [ ] or ( )?

Answer 7

it's another way instead of an open or close circle. also when graphing, do not forget to put - infinity and + infinity

Answer 8

ahhhhhh ok thank you i'll remeber that :)

Answer 9

the reason why I asked is because you might be asked to write it in notation as well. and you use either the [ ] and ( ) for that

Answer 10

yea i got asked to write it as a notation and completely blanked out so thank you for more help about that!

Answer 11

\[[3,\infty)\]