The mean temperature for the first 4 days in January was -2 degrees the mean temperature for first 5 days in January was was 0 degrees

what was the temperature on the 5th day
URGENT

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

19

step-by-step explanation:

the answer is a if my teacher taught me correct

the first domain and range set to the left is matched with the top relation, and the second set the set in the middle goes with the bottom relation.