Question

7 Dada a função f(x) = 3x + 4, determine:
a) f(1)
b) f(-2)
c) f(-8,6)
d) f (3/4)
e) f (-1/2)
f) f(1,5)

Answer 1

Resposta:

a) 7

b) -2

c) 21,8

d) 25

e) 5

f) 8,5

Explicação passo a passo:

F(1) = 3(1)+4

f(1) = 7

f(-2) = 3(-2) + 4

f(-2) = -2

f(-8,6) = 3(-8,6) + 4

f(-8,6) = 21,8

f(3/4) = 3(3/4) + 4

f(3/4) = 9/4 + 4

f(3/4) = 9/4 + 16/4

f(3/4) = 25

f(-1/2) = 3(-1/2) + 4

f(-1/2) = -3/2 + 4

f(-1/2) = -3/2 + 8/2

f(-1/2) = 5

f(1,5) = 3(1,5) + 4

f(1,5) = 8,5