Question

y varies directly as the square of x. When x = 2, y = 20. Find y when x = 4.

y = 40

y = 80

y = 100

y = 120

Answer 1

okay so i dont want the answer I need help on how to do it i want to understand it.

Answer 2

you just do the smae thing as in the x=2 plug in the awsnser 4=2 so y=20 whats y

Answer 3

im sorry i dont understand what you are saying

Answer 4

answer is 40

Answer 5

thts what i wsa trying to say but she dosent want the awnser

Answer 6

i just said i dont want the answer i want to know how to do it

Answer 7

you want work?

Answer 8

oh ok think of it like ratio

Answer 9

4=2 so therefore 40=20 its simple

Answer 10

2:20
and
4:Y

Answer 11

of you can think of it fractions

Answer 12

oooohhh okay thanks i get it

Answer 13

2 4
- x -
20 Y

Answer 14

cross multiply

Answer 15

give nemo the medal

Answer 16

xD

Answer 17

hah nemo now you give me one

Answer 18

haha

Answer 19

byebye

Answer 20

xD i wish i could log on mu old account

Answer 21

were u at 99??

Answer 22

yep
i'm on my new laptop and it doesn't allow me to log one xD

Answer 23

well ur arlerdy at 18 not tht far to go if you awnser and get meadals itll go by fast

Answer 24

i'm only 16 xD

Answer 25

?

Answer 26

on wait you meant my score Dx

Answer 27

ahhahhah yeah

Answer 28

hah im 15

Answer 29

cool well i'm out later

Answer 30

cyah