Question

4- Considerando a função f(x) =Y= 5x² + 6,
com xER E yer determine:
a) f(-4)
b) f(3)
c)f(6/5)
d)f(raiz de 2)​

Answer 1

Resposta:

Explicação passo-a-passo:

a) f(-4)= 5.(-4)^2 +6

f(-4)=5.16+6

f(-4)=80+6=86

........

b) f(3)=5.(3)^2+6

f(3)=5.9+6

f(3)=45+6=51

........

c) f(6/5)= 5.(3/6)^2+6

f(6/5)=5.36/25+6

f(6/5) =36/5+6=66

........

d) f (√2 )= 5. (√2 )² +6

f (√2 )=5.2+6

f (√2 )=10+6=16