Question

va rog întreb de ieri si nu mi raspunde nimeni

Answer 1

f(x)=-3x+2

A(a,b)

|a|=|b|

Caz 1

a=b

f(a)=b, adica f(a)=a

-3a+2=a

2=4a

$a=\frac{1}{2}$

$f(\frac{1}{2} )=-\frac{3}{2} +2=\frac{1}{2}$

$A(\frac{1}{2} ,\frac{1}{2} )$

Caz 2

a=-b sau -a=b

f(a)=b

Adica f(a)=-a

-3a+2=-a

2=2a

a=1

f(1)=-3+2=-1

A(1,-1)