discrete structures

Click and drag the given functions, allegedly from N to N, on the right, to their descriptions, on the left. Here, N represents the natural numbers that are the set of nonnegative integers. a function from N to N that is one-to-one but not onto a function from N to N that is not one-to-one but that is onto f(n)={n1n+1ifnisevenandnNifnisoddandnN f(n)=n/2 a function from N to N that is one-to-one and onto f(n)={n+1n1ifnisevenandnNifnisoddandnN f(n)=n17 a function from N to N that is neither one-to-one nor onto f(n)=17 f(n)=n+17 not a function from N to N