O 2,940 in.
5. Simon is filling a cylindrical water dispenser that has a radius of 7 inches and
a height of 20 inches. Which of these is the best estimate of the volume of
this water dispenser?
11,760 in.
o
140 in.
O
840 in.

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

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation: