Question

Dada a função f(x)=3x-5, calcule: a-f (-1)= b-f(1 sobre 3)=

Answer 1

f(-1)=3.(-1)-5 = -8
f(1/3)=3.(1/3)-5 = -2
a-(-8)=b-(-2)
a+8=b+2
a-b=-6

Answer 2

F(x) = 3x - 5 A) F(-1) = 3 . (-1) - 5 F(-1) = -3 - 5 F(-1) = -8 B) F(1/3) = 3 . 1/3 - 5 F(1/3) = 1 - 5 F(1/3) = -4