Question

Considerando a função f(x) = 3x – 5, calcule:
a) f(5)
b) f(3)
c) f( - 3)
d) f(0)
e) f(1/2)
f) f( - ¾)

Answer 1

Explicação passo-a-passo:

vamos lá:

a) f(5)= 3.5-5

f(5)=15-5

f(5)= 10

b) f(3)=3.3-5

f(3)=9-5

f(3)=4

c) f(-3)= 3.-3-5

f(-3)= -9-5

f(-3)= -14

d) f(0)= 3.0-5

f(0)= -5

e) f(1/2)=3.1/2-5

F(1/2)= 3/2-5

f(1/2)= 3/2-10/2

f(1/2)= -7/2

f) f(-3/4)= 3.-3/4-5

f(-3/4)= -9/4-5

f(-3/4)= -9/4-20/4

f(-3/4)= -29/4