Question

Sendo f(x) = 5.x – 16 calcule:



a) f(4)

b) f(3)

c) f(-2)​

Answer 1

Explicação passo-a-passo:

a) f(4)

f(x) = 5.x - 16

f(4) = 5.4 - 16

f(4) = 20 - 16

f(4) = 4

b) f(3)

f(x) = 5x - 16

f(3) = 5.3 - 16

f(3) = 15 - 16

f(3) = - 1

c) f(-2)

f(x) = 5x - 16

f(-2) = 5.(-2) - 16

f(-2) = -10 -16

f(-2) = - 26