Question

1- Dada a função do 1 GRAU f ( x ) = 1 - 5x, determine

a)f ( - 1/5)

b)f ( 8 )

c)f ( 10 )

d)f ( 12 )


?

Answer 1

a)
ƒ(x) = -5x + 1
ƒ(-1⁄5) = -5(-1⁄5) + 1 = 2

b)
ƒ(x) = -5x +1
ƒ(8) = -5 × 8 +1 = -39

c)
ƒ(x) = -5x +1
ƒ(10) = -5 × 10 +1 = -49

d)
ƒ(x) = -5x +1
ƒ(12) = -5 × 12 +1 = -59