(3 points) for each of the following functions, state whether they are onto or not. (you must enter t or f -- true and false will not work.) 1.f r 0} r - {0},f(x)=1/x° (0, 00), f(x) = x 2. f : [0, 0o) (0, 00), f(x) = 3 3. f [0, 00) [0,400, f(z) = x2 4. f [-20, 0 r, f(x) = 1/x2 5.f: r {0} for each of the following functions, state whether they are onto or not. (you must enter t or f -- true and false will not work.) 1. f: (2, oo) r, f(x) = 2. f : 2,2) 3.f(2, 00) (0,00), f(x)= 4. f r 2,-2}(-co,-1/4u (0,00), f(x) = - 5.f: r {2,-2} » r, f(æ) =- (-0,-1/4], f() = 6.f: 2,0 7. f [0,2) r, f(x)= 8.f -2,2) /4],f(z) = 9.f [0,,-1/4], f(z) = 10.f00,-2 (0, oo), f(x) = 11. f (-0o,-2) r, f(z)=- 12.f: (2,0 r, f(a)=