Over which interval on the x-axis is there a negative rate of change in the function?
O-2 to -1
O -1.5 to 0.5
O 0 to 1
O 0.5 to 1.5

-2 to -1 is the correct answer! just took the test .

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.