Explicação passo-a-passo:

Resolução:

2)

A)

F(x) = x³ + 5

F(-2)= (-2)³ + 5 = - 8 + 5 = - 3

F(-1)= (-1)³ + 5 = - 1 +5 = 4

F(0)= 0³ + 5 = 0+5 = 5

F(1)= 1³ + 5 = 1 +5 = 6

D={-2,-1,0,1}

CD={-3,-1,0,1,2,3,4,5,6}

Im={-3,4,5,6}

B)

F(x) = - x + 2

F(-2)= - (-2) + 2 = 2 + 2 = 4

F(-1)= - (-1) + 2 = 1 +2 = 3

F(0)= - 0 + 2 = 2

F(1)= - 1 + 2 = 1

D= {-2, - 1, 0,1}

CD={-3,-2,-1,0,1,2,3,4,5,6}

Im ={1,2,3,4}