9000007207

Level: 
Project ID: 
9000007207
Accepted: 
1
Clonable: 
0
Easy: 
0
Identify a function which has the following three properties: it has at least one minimum or maximum, it is an increasing function and the range of this function is the set of all nonnegative numbers.
f(x)=2x2, x[1;+)
f(x)=2x+2, x(1;+)
f(x)=2x+2, x(;1]
f(x)=2x2, xR