Posted by **gavyn** on Wednesday, January 14, 2009 at 8:59pm.

i have a homework assignment i do not know how to do. i was out sick so i have not learned this. hear is the question......y varies directly as x. find the constant of variation and write an equation for the direct variation.

question 1: y=15 when x=5

- 8th grade -
**bobpursley**, Wednesday, January 14, 2009 at 9:03pm
direct variation:

y= kx where k is the constant of variation.

15=k*3 find k.

- 8th grade -
**John**, Thursday, January 15, 2009 at 1:26pm
y=kx

y=15

x=5

Shouldn't it be 15=k*5?

- 8th grade -
**Anonymous**, Monday, October 22, 2012 at 7:37pm
The anwser is y=3x

Becasue all you doing is divding 15 dy 5 to get k

## Answer This Question

## Related Questions

- Variation - I have few questions that I need checked please and could you help ...
- algebra1 - M varies directly with n; m=144 when n=8. What is the constant of ...
- Pre-Algebra - If y varies directly with x, find the constant of variation with x...
- Pre-Calc - 1.) Suppose that y varies directly as x. If y is 5 when x is 30, the ...
- algebra - I have no clue what to do here can you tell me how to figure this? If ...
- math - t varies directly as the square root of l. If l=81, then t=10 what is the...
- math,help - I definately do not understand this problem. If y varies directly ...
- 8th grade - Direct Variation: when you have a job that pays an hourly wage, the ...
- Math - DIRECT VARIATION 1. a is directly proportional to b.If a=15,then b=9 2. m...
- Math - This is regarding direct variation. y varies directly as the square of R...

More Related Questions