Question

17) Dada a função f(x) 3x + 1, calcule:
a) f(9) - f(1)
b) f(4) - t(-2)
c) f-5) t(3)
d) t(2) + f(6)
e) f( 10) +f (3)

Answer 1

f(x)=3x+1

a)f(9)-f(1)=28-4=24
    f(9)=3.9+1=27+1=28
    f(1)=3.1+1=3+1=4

b)f(4)-f(-2)=13-(-5)=13+5=18
   f(4)=3.4+1=12+1=13
   f(-2)=3.(-2)+1=-6+1=-5

c)f(-5)+f(3)=-14+10=-4
   f(-5)=3.(-5)+1=-15+1=-14
   f(3)=3.3+1=9+1=10

d)f(2)+f(6)=7+19=26
   f(2)=3.2+1=6+1=7
   f(6)=3.6+1=18+1=19

e)f(10)+f(3)=31+10=41
   f(10)=3.10+1=30+1=31
   f(3)=3.3+1=9+1=10