Question

considere f(x) = 3x - x + 4 calcule f(2) - f(0)

Answer 1

Olá ^=^

f(x) = 3x - x + 4

f(2) = 3(2) - 2 + 4

f(2) = 6 - 2 + 4

f(2) = 8

f(0) = 3(0) - 0 + 4

f(0) = 4

f(2) - f(0) =

8 - 4

4

Answer 2

f(x) = 3x - x +4

Substitua x por 2

F(2) = 3 * 2 - 2 + 4 = 6 - 2 + 4 = 8

F(0) = 3*0 - 0 + 4 = 4

F(2) - F(0) = 8 - (4) = 4