The domain and range is the set of x and y values of a function
Notice that the curve starts at the x-axis at x=-3, curves down to y=-3 and goes back to the x-axis at x=3
This means that the curve will cover all real values of x greater than or equal to -3 and less than or equal to 3 and all real values of y greater than or equal to -3 and less than or equal to 0
The domain and range is the set of x and y values of a function
Notice that the line starts at the point (-1,1) and ends at point `(1,3)“
This means that the line will cover all real values of x greater than or equal to -1 and less than or equal to 1 and all real values of y greater than or equal to 1 and less than or equal to 3