Question

Choose the correct domain of the function in interval notation.
(-∞, ∞)
[-1, ∞)
(-∞, -1]
(-∞, 1]

Answer 1

SERIOUSLY? dOMAIN

Answer 2

domain is the x values, range is the y values

Answer 3

lol @princeharryyy

Answer 4

LOL FOR? DO U THINK I DON'T KNOW THE DEFINITIONS.

Answer 5

the definitions were for @evansanchez but you are right it is not hard to find the domain

Answer 6

you guys confused me.

Answer 7

:)

Answer 8

how??

Answer 9

is it D?

Answer 10

range is [-1,infinte)

Answer 11

considering the graph doesn't end at that top.

Answer 12

domain (-infinte, infinite) again considering the graph doesn't end on left and right.

Answer 13

here are some tips:

We use parenthesis when a value is not included in the interval, and brackets when the value is included in the interval. For functions that have an unlimited domain or range, we use infinity ∞ or negative infinity -∞ to show that the limit of the function is unknown. For a solution that includes positive or negative infinity, parenthesis is used to close the infinite side of the solution.