CHICKEN EXPERTS HELP PLEASE One of my chicks wont stop chirping and has half of its body (the bum) with dry feathers. Is it sick? Its been with other chicks and chickens and was doing perfectly fine until today. If so, is it contagious and how long do you think it takes to spread? If I clean myself will it decrease risks?​

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

answer: finding the extract measurements and knowing the points

step-by-step explanation: