maths

posted by .

The mapping is f:N →N, given by F(n)= 2n^3+1,n belongs to N.
A. one-one and onto
B. onto not one-one
C. one-one not onto
D. neither one-one nor onto

  • maths -

    Think of the shape of the graph.

    If we had f:R->R, it would be (A).

    By restricting to N, it is (C), since many numbers (like 2) are not in the range.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Discrete Math

    Let g(x)=3x^2+14x-15. Determine if g is one to one or onto. A. g:N->N B. g:R->R If You can help me with this problem showing all work that would be greatly appreciated. Thank You
  2. Mathematics

    I have a question about onto and one-to-one.?
  3. Discrete Math

    Hi, I need help with interpreting a figure. You can find it one photobucket. First, type in flutegirl516 in the search bar and then click on the message that says: "Are you looking for the Photobucket user flutegirl516?
  4. calculus

    Let f: R®R be defined by Determine whether or not f is a) one-to-one b) onto
  5. sant singh sukha singh school

    The mapping is f:N →N, given by F(n)= 2n^3=1,n belongs to N. A. one-one and onto B. onto not one-one C. one-one not onto D. neither one-one nor onto
  6. maths

    The mapping is f:N →N, given by F(n)= 2n^3=1,n belongs to N. A. one-one and onto B. onto not one-one C. one-one not onto D. neither one-one nor onto
  7. Maths

    Twenty-four ladybirds were sitting at various places around the garden.One sixth of the ladybirds flew away to settle in the garden.Half of the remaining ladybirds sat on a yellow sunflower.Then half of those on the sunflower flew …
  8. Maths

    Twenty-four ladybirds were sitting at various places around the garden.One sixth of the ladybirds flew away to settle in the garden.Half of the remaining ladybirds sat on a yellow sunflower.Then half of those on the sunflower flew …
  9. math

    1. Let f : Z to Z and g : Z to Z be functions de fined by f (x) = 3x + 1 and g(x) = [x/2] . (a) Is fog one-to-one?
  10. physics

    A slowly moving train with 15.0- m-long flatcars is passing a station at 11.0 km/h. A person on the station platform tosses rocks onto the moving flatcars at the rate of one every second. If the first rock just hits the front edge …

More Similar Questions