What is the direct variation equation if y varies directly with x and
y = –5 when x = –15?

Question

What is the direct variation equation if y varies directly with x and 
y = –5 when x = –15?

anonymous · Answer

guid me thought this pls no answers

anonymous · Answer

-5 -15

directrix · Answer

Giving direct answers on OpenStudy is against the rules of the site.

If anyone posts direct answers to one of your questions, then click on the Report Abuse tab and report the user.

anonymous · Answer

i dont want answers i need help guieding thourg

directrix · Answer

Attached is an image about direct variation. Read more at: http://www.regentsprep.org/regents/math/algebra/AO4/Ldirect.htm

directrix · Answer

Start with the direct variation equation:  y = k * x  where k is the constant of variation.

We have to find  k using the x and y values that were given in the problem.

anonymous · Answer

so its y=-3x

directrix · Answer

Given: y = -5,  = -15
---------------------

y = k*x

-5  =  k * (-15)   --> solve for k

directrix · Answer

No.

directrix · Answer

-5 = k * (-15) 

Divide both sides by -15

k = ?

directrix · Answer

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