Question

Dada a função F(x)=3x+5, calcule:
c) F(3)-F(4)=

Answer 1

Resposta:

f(3) = 3*3 + 5

f(3) = 9 + 5

f(3) = 14

f(4) = 3*4 + 5

f(4) = 12  + 5

f(4) = 17

f(3) - f(4) = 14 - 17 = -3