Question

Find the variation constant and an equation of variation when y varies directly as x and y=27 and x=9

Answer 1

if y varies directly...

y =kx

replace with 27 and 9

27= k (9)

thats your equation

and

k=3

Answer 2

actually i think the equation would be:

y = 3x

Answer 3

So k=3 and y=3x?

Answer 4

yep

Answer 5

Thank you!

Answer 6

got anymore?

Answer 7

Oh, plenty. :D I'm doing a test. I'm doing the ones that I can do myself and putting the more complicated/ or ones i forgot how to do on here.

Answer 8

ok let me know.. im hecka bored.. lol

Answer 9

I'll attach one. Give me a sec.

Answer 10

Zing.

Answer 11

ok so we want (x-2)(x-2)=0 because if we set x = 2 its true

Answer 12

just foil that out and there ya go =P

Answer 13

k=y/x
k=27/9=3

Answer 14

Oh my, that was simple. lol I'm so tired I can't see straight. Here's another.

Answer 15

5(6s+5t)^2

Answer 16

notice with that one we can take out the t

Answer 17

t (t^2-4t-45)

Answer 18

then its just a normal one

Answer 19

im thinkin -9 and +5...

Answer 20

ill let you do the rest

Answer 21

Awesome. Thank you!

Answer 22

hehe no problem