Question

Dada a função quadrática f(x)=3x²-4× +1 determine. a) f(-3) b) f(0) c) f(3) d) f(-2) e) f(h + 1)

Answer 1

f(x) = 3x²-4x+1

a) f(-3) = 3.(-3)²-4.(-3)+1
3.9+12+1
27+13
f(-3) = 40

b) f(0) = 3.0²-4.0+1
3.0+1
f(0) = 1

c) f(3) = 3.3²-4.3+1
3.9-12+1
27-11
f(3) = 16

d) f(-2) = 3.(-2)²-4.(-2)+1
3.4+8+1
12+9
f(-2) = 21