4The Freedom Tower in New York City has 102 floors with elevators that travel at astonishing speeds. The scatterplot shows the relationship between the floor number, y, and the average
number of seconds the elevator takes to descend from floor 102 to floor x.
Freedom Tower
Floor number
110
100
90
80
70
60
50
40
30
20
10
х
3
6 9 12 15 18 21
Time (seconds)
nme
to D
What is the best prediction for the number of seconds it will take the elevator to descend
from floor 102 to floor 50?

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

(x+3)(x+7)

step-by-step explanation: