SOLUTION: DIRECT VARIATION Find an equation of variation where y varies directly as x and y=2 when x=10 find y when x = -25. y=___

SOLUTION: DIRECT VARIATION Find an equation of variation where y varies directly as x and y=2 when x=10 find y when x = -25. y=____ Thanks you very much

Question 40351: DIRECT VARIATION
Find an equation of variation where y varies directly as x and y=2 when x=10 find y when x = -25.
y=____
Thanks you very much

Found 2 solutions by Nate, JoelSchwartz:
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
Find an equation of variation where y varies directly as x and y=2 when x=10 find y when x = -25.
(y)/(x)
(2)/(10) = (y)/(-25)
-5 = y
Answer by JoelSchwartz(130) (Show Source): You can put this solution on YOUR website!
5y=x
5*2=10
5+5=10
5y=-25
5*-5=-25
-5-5-5-5-5=-25
y=-5
This is a little easier to understand than the other example.
RELATED QUESTIONS
y varies directly as x. find the constant of variation and the direct-variation equation. (answered by stanbon)
Find the variation constant and an equation of variation where y varies directly as x and (answered by stanbon)
Find an quation of variation where y varies directly as the square of x, and where y=0.40 (answered by eggsarecool)
find an equation of variation where y varies directly as x and y = 100 when... (answered by jim_thompson5910)
Find the variation constant and an equation of variation where y varies directly as x and (answered by stanbon)
Find the variation constant (constant of proportionality) and an equation... (answered by josgarithmetic)
We are struggling with these problems. Thank you Find the variation constant and an... (answered by rapaljer)
If y varies directly as x, find constant of variation k and the direct variation equation (answered by richwmiller)
Can anyone help solve this? Problem states: Find the variation constant and an equation (answered by scott8148)