Question

Dada a função por f(x)= x²-6x+9
Calcule

a) f(0)

b) f(1)

c) f(-2)

d) f(3)

Answer 1

f(x)= x²-6x+9

a) f(0)
f(0) = x²-6x+9
f(0) = 0²-6.0+9
f(0) = 0 - 0 + 9
f(0) = 9

b) f(1)
f(1) = 1²-6.1+9
f(1) = 1 - 6 + 9
f(1) = -5 + 9
f(1) = 4

c) f(-2)
f(-2) = (-2)²-6.(-2)+9
f(-2) = 4 + 12 + 9
f(-2) = 25

d) f(3)
f(3) = 3²-6.3+9
f(3) = 9 - 18 + 9
f(3) = 0


Bons estudos !!! :-)