Question

MEDAL & FAN for correct answer!!!
If f(x) varies directly with x2, and f(x) = 96 when x = 4, find the value of f(2).
192
72
32
24

Answer 1

24

Answer 2

can you explain to me how you got that answer?

Answer 3

Okay first, we'll find C

For x=4 we have f(x) = 96 so you'll plug that into the equation

96 = C *(4)^2

Can you solve for C?

Answer 4

what does the arrow between the 4 and the 2 mean?

Answer 5

oh wait its an exponet

Answer 6

so c=6

Answer 7

Yes. So you have f(x) = 6x^2 that gets you f(2)

f(2) = 6 * (2)^2

Answer 8

ok I GOT IT thanks:):):) , do you mind helping me with another?

Answer 9

What is it?

Answer 10

opps hold on

Answer 11

I only have 10 minutes before I have to leave to my dance class

Answer 12

sorry i got kicked out

Answer 13

lol its okay

Answer 14

Write a quadratic variation equation if g(x) varies directly with x^2, and g(x) = 144 when x = 6.
answers:
g(x)=24x^2
g(x)=6x^2
g(x)=4x^2
g(x)=1/4x^2

Answer 15

sorry, I have to go, I wasn't able to finish solving the problem, I'm REALLY REALLY SORRY!

Answer 16

its ok

Answer 17

thanks anyway!!! ::))