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September 19, 2014

September 19, 2014

Posted by **Soly** on Monday, October 8, 2007 at 7:29pm.

Write an equation that expreses the relationship. Use k as the constant of varaiation.

1. s varies directly as h

-I got: s=kh

2.a varies directly as the square of m.

-I got: a=km^2

Determine the constant of variation the stated condition.

6. b varies directly as a, and b=90 when a=6.

-this is what I did: 90=k/6, then I multiplied each side by 6, (6)(90)=k(6)/(6)(6), I got k=15.

If y varies directly as x, find the direct variation equation for the situation.

10. y=4 when x=20

-This question I dont understand

- Variation -
**bobpursley**, Monday, October 8, 2007 at 7:39pmall right so far,

10) y=kx

k= y/x= 4/20

y= (4/20) x

- Variation -
**jazz**, Saturday, October 29, 2011 at 9:15pmWrite the equation of direct variation for x = -5 and y = 90.

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