3. Consider the function f (x)=1 and g(x)=(x+1) . What is the domain of the combined X function h(x) = f(g(x)) ? A X: X#1,XER B (x: x#-1, XER) C (x: X#0,x#-1,XER D (x: X#0, XER 4. Which function has a domain of (x : XER) and a range of (y : yz-3, yER) ? A y= /x+51-3 By= Vx-5-3 Cy= (x-5)2+3 Dy= Vx+5-3 5. If log, 2 = z, then log, V9" is equivalent to A (3/2z) B Z -8/3 C Z 1-3/2 D (3/8z)