Bijections

[lm6485]

Determine whether each of these functions is a bijection from R to R

a) f(x)=-3x+4

b) f(x)=-3x^2+7

c) f(x)= (x+1)/(x+2)

d) f(x)= x^5+1

 

[tkhunny]

Well, you probably should examine the Domain and Range of each. Let's see what you get.