Are there any outliers? The stemplot below displays the times, in seconds, for
25 students to run 100 meters.
No, there are no outliers.
Yes, 22 is an outlier.
Yes, 30 is an outlier.
Yes, 22 and 30 are outliers.
100-Meter Times (sec)
233444
ω 0 0
5 5 5 5 6 6 6 6 6 7 7 7 8 8 8 899
30
Key: 116 = 16 seconds taken to run
100 meters

c. 4 1/4 pounds

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

b

step-by-step explanation: