Create equivalent expressions A.) 4(a + b)
B.) 219y + 3)
C.) 4 to the second power (12 + 5c)
D.) 10y + 20
E.) 8g - 240

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

5/20 so 25%

step-by-step explanation:

thus, the first answer choice, y = sec x, is the correct one

the absolute value function