Question

dada a função f(x) =2x +3, determine: a) f(1)-f(0) b) f(2)-(1) c)f(3)-f(2)

Answer 1

Resposta:

a) 2 b) 2 c) 2

Explicação passo-a-passo:

$f(x) = 2x +3$

a)

$f(1) = 2.(1) + 3 = 2 + 3 = 5\\f(0) = 2.(0) +3 = 0 +3 = 3\\\\f(1)-f(0) = 5-3 = 2$

b)

$f(2) = 2.(2) +3 = 4 +3 = 7\\f(1) = 5\\f(2)-f(1) = 2$

c)

$f(3) = 2.(3) +3 = 6+3 = 9\\f(2) = 7\\f(3)-f(2) = 9-7 = 2$