Question

Sendo f (x)=-5x+25 calcule f (-2)+f (3)

Answer 1

f(x)= - 5x + 25

Calcular f(- 2):

f(- 2) = - 5.(- 2) + 25

f(- 2) = 10 + 25

f(- 2) = 35

Calcular f(3):

f(3)= - 5.3 + 25

f(3) = - 15 + 25

f(3) = 10

Então:

= f(- 2) + f(3)

= 35 + 10

= 45

Resposta: 45

Answer 2

Olá...

f(x) = - 5x + 25

Calcule:

f(- 2) + f( 3)

a) f(- 2)

f(- 2) = - 5.(- 2) + 25

f(- 2) = 10 + 25

f(- 2) = 35

b) f( 3)

f( 3) = - 5. ( 3) + 25

f( 3) = - 15 + 25

f( 3) = 10

Logo:

f( - 2) + f( 3)

35 + 10

45

Bons estudos.