(a). Define the function f:
by f(x,y) = (x+2y, 3x+4y). Is f one-to-one?
(Justify your answer)
(b). Define the function g:
by g(x) = (x+1, x+2). Is g onto?
(Justify your answer)
thanks!
(a). Define the function f:
by f(x,y) = (x+2y, 3x+4y). Is f one-to-one?
(Justify your answer)
(b). Define the function g:
by g(x) = (x+1, x+2). Is g onto?
(Justify your answer)
thanks!
My answer
(a) Yes
(b) i am not sure about this one
How to justify these?