y = x^2 - 8x + 16
y = (2/3)*x
x^2 - 8x + 16 = (2/3)*x
3*(x^2) - 26x + 48 = 0
D = 676 - 4*3*48 = 676 - 576 = 100
x1 = (26 - 10)/6
x1 = 16/6
x1 = 2(2/3)
x2 = (26 + 10)/6
x2 = 6
y1 = (2/3)*[2(2/3] = 1(7/9)
y2 = (2/3)*6 = 4
(2(2/3); 1(7/9)) ; (6 ; 4) - точки пересечения данных функций