When I flew from Atlanta to New York, the plane flew 866 miles in 4 hours. What is the unit rate of miles per
hour?

216.5

Step-by-step explanation:

866/4

216.5

216.5 miles per hour.

Step-by-step explanation

This is a fraction equal to

866 miles ÷ 4 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 4

866 miles÷ 4

4 hours÷ 4

=

216.5 miles

1 hour

=

216.5 miles

hour

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

hi there!

the answer will be d: 2