Which of these tables could represent a quadratic function? x y
2 4
2 2
2 0
2 -2
2 -5

x y
2 4
2 2
2 0
2 2
2 5

x y
-6 4
-5 -4
0 -4
4 -4
5 -4

x y
3 16
0 7
7 0
-1 0
6 7

THE first 1 because they both have negative and positive numbers on the table  

Step-by-step explanation:

bull

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870