Question

x is any real number write the interval notation

Answer 1

can someone explain interval notation?

Answer 2

i think you mean for example [0,2) which means numbers in the interval 0 to 2
including 0 but not 2 . The square bracket indicates the number is inclusive and round that its not.

Answer 3

all reals
from negative infinity to positive infinity

Answer 4

thank you, but how do i graph it ?