These tables represent a quadratic function with a vertex at (0, -1). What is the average rate of change for the interval from x = 8 to x = 9?
х
y
Interval
0
1
Average rate
of change
1
41-2
13
1-2
15
10-2
-7
41-2
19
41-2
111
0 to 1
1 to 2
2 to 3
3 to 4
4 to 5
5 to 6
+++
4
5
-17
-26
37
O A. -82
B. -2
C. -17
D. -65

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.

measurement of the swimming pool is given as = 7 yards 4.79 feet

first we will convert this to yards only.

1 foot = 0.33 yards

so, 4.79 feet = yards

so total yards are = yards

now we will convert this in meters.

1 yard = 0.914 meters

8.580 yards = meters

0.842 m = 0.842*100 = 84.2 cm

this becomes 7 meters and 84.2 cm

hence, the pool is 7 meters and 84.2 cm wide.