# math

posted by .

Explain why there does not exist a function whose domain is {-1,0,3} and whose range is {3,4,7,9}. PLEASE EXPLAIN!!

• math -

Each number in the domain would have to correspond to one number in the range. There is one number too many in the range.

• math -

Thank You :)

• math -

domain and range

## Similar Questions

1. ### Functions

consider the functions g(x)=(4-x^2)^0.5 and h(x)=(x^2)-5. find the composite functions hog(x) and goh(x), if they exist, and state the domain and range of the composite functions. ------------------------------ ok, i have figured out …
2. ### Piecewise function

write a piece-wise function over 3 intervals whose domain is (-infinity, infinity) and whose range is (-infinity,-3) united (1,10). include an increasig, decreasing, and a constant function.
3. ### maths

Give an example of a function whose domain is {2,5,7} and whose range is {-1,0,3}?

A.give an example of a function whose domain is {3,4,7,9}?
5. ### Maths

A give an example of a function whose domain equals the set of real numbers and whose range equals the set?

Please check urgently .I have to submit the assignment A give an example of a function whose domain equals the set of real numbers and whose range equals the set?