1. Select the sets of ordered pairs that represent a function. A)(0,3),(1,4),(2,5),(1,6),(0,7)
B) (-2,0),(0,1),(2,2),(4,3),(6,4)
C) (2,4),(0,2),(2,0),(0,-2),(2,-4)
D) (3,-2),(4,-3),(5,-4),(6,-5)
E) (3,-2),(-2,3),(4,-1),(-1,4)

*Select all that apply

The first people to answer i give brainliest answer!!
I give 10 points!!

B, D, and E

Step-by-step explanation:

The x values don't repeat for those sets, therefore they are functions.

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

1

step-by-step explanation:

you are throwing one dart