Question 16 (a-d only): Which of the following definitions describe functions from the domain to the codomain given? Which functions are one-to-one? Which functions are onto? Describe the inverse function for any bijective function.

, b. Z N Q where h is defined by h(z, n)-z/(n + 1) d, f: {1.2.3} {p, q ,r)v here f= {(Ly), (2, r), (3,p)} N N where g is given by g(x)-2x fh: R2 R, where h is defined by h(x,y)-(v + 1, x + 1) functions are one-to-one? Which functions are onto? Describe the inverse function for any bijective function. a f: Z N where fis defined by f(x,y) = x2 + bf N N where,fis defined by f(x) x/2 if x is even x 1 if x is odd c, g: R R where g is defined by g(x)-1/V(x + 1) d. f: N N where/is defined by f(x)-x-l i fx is odd e N where h is given by h, y,) r y- z f g: N2-n3 where g is defined by g(x,y)-(v, x, 0) bijective? x + l ifx is even 17, Let f R R be defined by f(x)-x , where n is a fixed, positive integer. For what values of n is/ 18 Let f dofinad hy fn2, where n is a fixed, positive integer. For what values of n is fan