Question

Dada a função f: R-> R/ f(x)=3x+1, calcule:

a- f(-1)=
b- f(3)=
c- f(5)=
d- f(1/2)=

Answer 1

f(x)=3x+1, calcule:

a- f(-1)= 3.(-1)+1 = -3 + 1 = -2
b- f(3)=  3.3 + 1 = 9 + 1 = 10
c- f(5)= 3.5 + 1 = 15 + 1 = 16
d- f(1/2)= 3.(1/2) + 1 = 3/2 + 1 = 5/2