Question

VALENDO 50 PONTOS

5) Dada a função de primeiro grau f(x) = 2x + 3, qual é o valor de

a) f(10)=

b) f(5)=

c) f(-8)=

d) f(-7)=

e) f(0)=

Answer 1

f(x) = 2x + 3

a) f(10) = 2 . 10 + 3 = 20 + 3 = 23

b) f(5) = 2 . 5 + 3 = 10 + 3 = 13

c) f(-8) = 2 . (- 8) + 3 = - 16 + 3 = - 13

d) f(-7) = 2 . (- 7) + 3 = - 14 + 3 = - 11

e) f(0) = 2 . 0 + 3 = 0 + 3 = 3

Answer 2

Oie, Td Bom?!

f(x) = 2x + 3

a) f(10) = 2 • 10 + 3 = 20 + 3 = 23

b) f(5) = 2 • 5 + 3 = 10 + 3 = 13

c) f(- 8) = 2 • (- 8) + 3 = - 16 + 3 = - 13

d) f(- 7) = 2 • (- 7) + 3 = - 14 + 3 = - 11

e) f(0) = 2 • 0 + 3 = 0 + 3 = 3

Att. Makaveli1996