Question

постройте график функции y= 6x - 8 - x^2

Answer 1

- x2 + 6 x - 8 = 0

D = 62 - 4·(-1)·(-8) = 4

x1 = -6 - √4 = 4
2·(-1)

x2 = -6 + √4 = 2
2·(-1)

Answer 2

график же надо