y=2x²-6x+11
В(х; у) - вершина,
х(В) = -b/2a
x(B) = 6/4 = 3/2 = 1.5
y(B) = 2*1.5²-6*1.5+11=2*2.25-9+11=4.5+2=6.5
B(1.5; 6.5)
y=2x²-6x+11
В(х; у) - вершина,
х(В) = -b/2a
x(B) = 6/4 = 3/2 = 1.5
y(B) = 2*1.5²-6*1.5+11=2*2.25-9+11=4.5+2=6.5
B(1.5; 6.5)