1

$\{x \in ℝ, x \geq 1\}$

Is a function

True

False

✗✓

2

$\{x \in ℝ\}$

Is a function

True

False

✗✓

3

$\{x \in ℝ, x \neq 1\}$

Is a function

True

False

✗✓

4

$\{x \in ℝ\}$

Is a function

True

False

✗✓

5

$\{x \in ℝ\}$

Is a function

True

False

✗✓

6

$\{x \in ℝ, x < 1\}$

Is a function

True

False

✗✓