How do you do direct and indirect variations

What is the standards form for a variation question? I forgot. It's something like y=ka^x   Please reply ASAP. I have a final exam for algebra 2 honors in 2 days....  

06/02/13

find the exact value of Sin-1(0) and Cot-1v3 ?

find the exact value of Sin-1(0) and Cot-1√3 ?

06/02/13

find the exact values of the 6 trig function for a) 240 degree and b) 13p/4

find the exact values of the 6 trig function for a) 240 degree and b) 13π/4

06/02/13

find the exact value of cot(9p/2) and sin(-5p) ???

find the exact value of cot(9π/2) and sin(-5π) ???

4log(x)-10log(y)+2log(z)=

Write as logarithm of single expression

1/x-1/2=2-x/2x

Directions say to prove the algebraic identity by starting with the Left hand side expression and supplying a sequence of equivalent expressions that ends with the right hand expressions

09/02/12

1.)a^2/3 b^-3/4 divided by a^5/6 b^2 2.) (-2x^4y^-5) ^-3 divided by (4x^-3 y^4)^-2

getting rid of negative exponnets

08/28/12

What the difference between Non linear problem and linear problem in simple english.

I'd like to get an example in words and explanation why it is a linear/non linear problem. I want the example to be something like  "You have to paint a full house when every room consumes x... more

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