Suppose that y is directly proportional to x.
(a) Use the given formula to find the constant proportionality k.
(b) Then use y=kx to find y for x=6.
y=-68 when x=5

Question

anonymous · Answer

y is directly proportional to x means that:
y=kx for some real number k, to find the value of k, just use the info that y=-68 when x=5.

anonymous · Answer

(a)k=

anonymous · Answer

y=kx => k = y/x = -68/5,   for x=6 => y=-68 *6 /5 = 81.6

anonymous · Answer

try to do it, it's so easy.. just substitute y=-68, and x=6 in the equation y=kx.. and solve for k.

anonymous · Answer

I just need the answer I have a crapload to do. Yes, a crapload!
:)

anonymous · Answer

good luck!

anonymous · Answer

Thanks so much......."AnwarA".......sigh.

anonymous · Answer

Nexien, I don't understand what u typed.

anonymous · Answer

no problem.. but why is the "sigh"? :P

anonymous · Answer

Why the "good luck!"

anonymous · Answer

HAHA.. I was just wishing you luck, is there a problem in that?

anonymous · Answer

Yeah sure.

anonymous · Answer

Well I am sorry then.