Question

Determine a, b e c, nas funções abaixo:
a) f (x) = 5x2- 8x + 9 a = ____ b = ____ c =____
b) f (x) = + x - 2 a = ____ b = ____ c =____
c) f (x) = 4 x2- 8 a = ____ b = ____ c =____
d) f (x) = x2- 7x a = ____ b = ____ c =____

Answer 1

Resposta:

a) f (x) = 5x²- 8x + 9 a = +5; b = -8; c = +9

b) f (x) = + x - 2 a = 0; b = +1; c = -2

c) f (x) = 4x²- 8 a = 4; b = 0; c = -8

d) f (x) = x²- 7x a = +1; b = -7; c = 0