Question

4.Dado f(x) = x^2 + 5x -6, calcule.


a) f(0)


b) f(1)


c) f(2)


d) f(-1)

Answer 1

a)
f ( 0 ) = ( 0 )2 + 5 ( 0 ) - 6
f ( 0 ) = 0 + 0 - 6
f ( 0 ) = - 6

b)
f ( 1 ) = ( 1 )2 + 5 ( 1 ) - 6
f ( 1 ) = 1 + 5 - 6
f ( 1 ) = 6 - 6
f ( 1 ) = 0

c)
f ( 2 ) = ( 2 )2 + 5 ( 2 ) - 6
f ( 2 ) = 4 + 10 - 6
f ( 2 ) = 14 - 6
f ( 2 ) = 8

d)
f ( - 1 ) = ( - 1 )2 + 5 ( - 1 ) - 6
f ( - 1 ) = 1 - 5 - 6
f ( - 1 ) = - 6 - 6
f ( - 1 ) = - 12