Question

1) dada a função de f, com f(x)=3x-1, determine
a) f(1)-f(0)
b)f(2)-f(1)
c)f(3)-f(2)
f(4)-f(3)
???​

Answer 1

Explicação passo-a-passo:

1) dada a função de f, com f(x)=3x-1, determine

a) f(1)-f(0)

f(x)= 3x-1

f(1)= 3.1-1= 3-1=2

f(0)= 3.0-1= -1

= 2-(-1)

= 2+1

= 3

________________

b)f(2)-f(1)

f(x)= 3x-1

f(2)= 3.2-1= 6-1= 5

f(1)= 3.1-1= 3-1= 2

= 5-2

= 3

________________

c)f(3)-f(2)

f(x)= 3x-1

f(3)= 3.3-1=9-1=8

f(2)= 3.2-1=6-1=5

=8-5

= 3

f(4)-f(3)

f(x)= 3x-1

f(4)= 3.4-1= 12-1=11

f(3)= 3.3-1= 9-1=8

= 11-8

= 3