6.8.34 Set Theory

Condition: indicate which display \ (f_ {1} \) or \ (f_ {2} \) is linear and find the image of the segment [0; 1] with the selected display. \ [f_ {1} = \ frac {2 x^{2} -2} {x+1}, \ quad f_ {2} = \ frac {5} {x} +3 \]