Question

determine f(0), f(-1), f(2), f(15) para cada funçao dada F(x)=4x+7

Answer 1

Olá!!

Resolução!!

f ( x ) = 4x + 7

Basta substituir esses números f ( ) por" x "

• f ( 0 ) = ?

f ( x ) = 4x + 7
f ( 0 ) = 4 • 0 + 7
f ( 0 ) = 0 + 7
f ( 0 ) = 7

• f ( - 1 )

f ( x ) = 4x + 7
f ( - 1 ) = 4 • ( - 1 ) + 7
f ( - 1 ) = - 4 + 7
f ( - 1 ) = 3

• f ( 2 ) = ?

f ( x ) = 4x + 7
f ( 2 ) = 4 • 2 + 7
f ( 2 ) = 8 + 7
f ( 2 ) = 15

• f ( 15 ) = ?

f ( x ) = 4x + 7
f ( 15 ) = 4 • 15 + 7
f ( 15 ) = 60 + 7
f ( 15 ) = 67

Espero ter ajudado;