f(m)=m+1
-2m/3+2=m+1
1=5m/3
m=3/5
verificare
f(3/5)=8/5???
-2/3* (3/5)+2=-2/5+2=-2/5+10/5=8/5 , adevarat, deci bine rezolvat
b) functia intersecteaza axele astfel
Oy; x=0 y=2
Ox; y=0 ; f(x) =0 ; 2x/3=2 ; x=3
Axele fiind ⊥,aria = (cateta 1 * cateta 2)/2=2*3/2=3unitati de arie