Question

4) Dada a função f(x) = - 4x + 12, calcule:
a) f(3) = c) f(- 2) = -4
b) f(4) = d) f(3/2) =

Answer 1

Resposta:

a) f(3) = -4(3)+12

f(3)= -12 +12

f(3) = 0

b) f(4) = -4(4)+12

f(4)= - 16 +12

f(4)= - 4

c) f(-2) = -4(-2)+12

f(-2) = 8 +12

f(-2) = 20

d) f(3/2)= - 4(3/2)+12

f(3/2)= -6+12

f(3/2)= 6