In the parabola y=ax*2+bx+c of junior high school mathematics, the value of B for up-and-down translation remains unchanged, which value for left-and-right translation remains unchanged? What else are similar? Left and right translation

The left translation p unit length, that is, the analytical formula of the original parabola is

y=a(x+p)^2+b(x+p)+c

=ax^2+2apx+ap^2+bx+bp+c

=ax^2+(2ap+b)x+ap^2+bp+c

So the value of a is constant, and the value of a b is constant when translating up and down.