PLZ ANSWER ALL
−3/4+1 1/4
3/4+(−2 1/2)
−9+6
8+(−4)
−1.5+1.9

-3/4+1 1/4 = 1/2

3/4 - 2 1/2 = 3/4 - 10/4 = -7/4 = -1 3/4

-9+6= -3

8 - 4 = 4

-1.5+1.9 = .4

A.) -3/4 + 11/4 = 2

-3/4 = -0.75

11/4 = 2.75

-0.75 + 2.75 = 2

B.) 3/4 + (-21/2) = -9.75

-21/2 = -10.5

3/4 = 0.75

-10.5 + 0.75 = -9.75

C.) -9 + 6 = -3

D.) 8 + (-4) = 4

E.) -1.5 + 1.9 = 0.4

Hope this helps.

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