Question

1- Dada a função F(x) = 8x + 15 , calcule a) F ( 0 ) - F ( 3 ) b) F ( 5 ) - F ( 10 ) c) F ( 7 ) + F ( -3 ) d) F ( 2 ) + F ( 3 ) 2- Dada a função F ( x ) = 3x + 1 , calcule: a) F ( 9 ) - F ( 1 ) b) F ( 4 ) - F ( - 2 ) c) F ( - 5 ) + F ( 3 ) d) F ( 2 ) + F ( 6 ) e) F ( 20 ) + F ( 3 )​

Answer 1

Resposta:

Parte 1

A) -54

B) -40

C) 62

D) 70

Explicação passo a passo:

A) F(0) - F(3)

F(0) = 8.0+15= 15

F(3) = 8.3 + 15 = 24+15 = 39

15 - 69 = - 54

B) F(5) - F(10)

F(5) = 8.5 + 15 = 40+15 = 55

F(10) = 8.10+15 = 80+ 15 = 95

55-95= -40

C) F(7) + F(-3)

F(7) = 8.7+15 = 71

F(-3) = 8.(-3) + 15 = - 24+15 = -9

71-9 = 62

D) F(2)+F(3)

F(2)= 8.2 + 15 = 16+15= 31

F(3)= 8.3 + 15= 24+15= 39

= 31+39 = 70