Answer:
The domain is {x:x is a real number}
The range is {y:y is only 4}
Step-by-step explanation:
The domain of the function is the values of x
The range of the function is the values of y
f(x) = 4 is represented graphically by a horizontal line // to x-axis from y = 4
Every point on the this line has different values of x but same value of y
ex: (-1 , 4) , (5 , 4) , ( 0.1 , 4) , ................
So f(x) = 4 is called constant function
