Question

6 va roggg frumosssssssss dau coroana

Answer 1

a) f(x)=x+1

f(x)=0. = x=-1;

x=0. f(x)=1

b)f(x)=-x+3

f(x)=0. =>x=3

x=0. f(x)=3

c)f(x)=2x

f(x)=0. =>x=0

f(x)=2. x=1

x=0 f(x)=0

d)f(x)=-3x+5

f(x)=0. x=5/3

x=0. f(x)=5

e)f(x)=2x-4

f(x)=0. x=2

x=0. f(x)=-4

f). f(x)= -2x-4

f(x)=0. x=-2

x=0. f(x)=-4