Before beginning voice lessons, Troy already knew how to sing 1 piece, and he expects to learn 1 new piece during each week of lessons. After 47 weeks of voice lessons, how many
pieces will Troy be able to sing, in total?

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

answer   download the app called socratic on your phoner:

step-by-step explanation:

idk lol xd

step-by-step explanation:

ez do it yourself lazy

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy