The domain and range of the graphs are
graph A:
domain: -6 ≤ x < 6
range: -6 ≤ y < 4
graph B
domain: -∞ < x < ∞
range: ∞ < y < ∞
What is domain and range
The domain of a function is the set of all possible input values (independent variable) for which the function is defined. It represents the values that you can plug into the function to get meaningful output.
The range of a function is the set of all possible output values (dependent variable) that the function can produce for the given input values in the domain.