Question

Sendo f a função dada pela lei f(x) = 4x+1, calcule:

a) f(-2) • f(1) =

b) 2 • f(3) + f(0) =

c) f(3) - f(2) =

d) 3 • f(4) + f(5) =​

Answer 1

Explicação passo-a-passo:

f(x)= 4x +1

f(1)= 4.1+1= 4+1=5

f(-2)= 4.(-2) +1= -8 +1= -7

f(3) = 4.3 +1= 12+1= 13

f(0)= 4.0 +1= 0+1= 1

f(2)= 4.2 +1= 8+1=9

f(4)= 4.4+1= 16 +1= 17

f(5)= 4.5 +1= 20+1= 21

a) f(-2) . f(1)=

- 7 . 5=

- 35

b) 2. 13 + 1=

26 +1=

27

c) 13 - 9=

4

d) 3. 17 + 21=

51 +21=

72