Question

01-Seja a função quadratica fx) = 3x - 5x + 4
calcule
a) f(-2)=
b) f(2)=​

Answer 1

Resposta:

f(x) = 3x² – 5x + 4, calcule:

f(-1)= 3(-1)² – 5.(-1) + 4

f(-1) = 3.1 + 5 + 4

f(-1) = 3 + 9

f(-1) = 12

f(-2) = 3.(-2)² – 5.(-2) + 4

f(-2) = 3.4 + 10 + 4

f(-2)= 12 + 14

f(-2) = 26

f(10)= 3.(10)² – 5.10 + 4

f(10) = 3.100 - 50 + 4

f(10) = 300 - 46

f(10) = 254

f(2) = 3.2² – 5.2 + 4

f(2) = 3.4 - 10 + 4

f(2) = 12 - 6

f(2)= 6

Answer 2

Explicação passo-a-passo:

Explicação passo-a-passo:

f(x) = 3x² – 5x + 4, calcule:

f(-1)= 3(-1)² – 5.(-1) + 4

f(-1) = 3.1 + 5 + 4

f(-1) = 3 + 9

f(-1) = 12

f(-2) = 3.(-2)² – 5.(-2) + 4

f(-2) = 3.4 + 10 + 4

f(-2)= 12 + 14

f(-2) = 26

f(10)= 3.(10)² – 5.10 + 4

f(10) = 3.100 - 50 + 4

f(10) = 300 - 46

f(10) = 254

f(2) = 3.2² – 5.2 + 4

f(2) = 3.4 - 10 + 4

f(2) = 12 - 6

f(2)= 6