Answer:
x ≥ 4
Step-by-step explanation:
Since there is a closed circle at x = 4, this indicates that x can be equal to 4
The line to the right is shaded indicating values of x greater than 4
Thus x ≥ 4 ← is the inequality represented in the number line
You have to analyze the problem, to find out what is the dependent variable, which is y. Also, what unit is the independent variable which is x.
Answer:
or 4.47
Step-by-step explanation:

The second one i got (0,-2) first one i got (0,9)