Question

SEJA F UMA FUNÇAO DE R EM R F(X)= -2X -7 CALCULE

A- F(2)
B- F(-5)
C-F(6/3)
D-F(X)=-25
E-F(X)=1
F-f(X)=-11

Answer 1

Resposta:

f(x)=-2x-7

A)F(2)= -2.2-7=-11

B)f(-5)= -2.-5-7=3

C)f(6/3)= -2.6/3-7=-2.6/3-7/1=-2.(6+1)+(-7+3)=-2.7+4=-2.11=-22

D)f(x)=-25 = -2x-7-25=-2x+32=x=32/2=16

E)f(x)=1

-2x-7+1=-6=x=6/2=3

F)f(x)=-11

-2x-7-11=18=x=18/2=9