Question

dada à função do 1 grau f (x) = 4x - 5 , qual o valor de:

a) f(2)
b) f(-4)
c) f(0)
d) f(20)

Answer 1

a) f(2)

4*2 - 5 = 3

b) f(-4)

4*(-4) - 5 = -21

c) f(0)

4*0-5 = -5

d) f(20)

4*20-5 = 75