How do you find the direct variation equation if d varies directly as t when #t=7#, #d=329#?

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Answer 1 · 2014-11-05T10:35:11

Since #d# varies directly as #t#, we have

#d=kt#,

where #k# is a constant.

By plugging #t=7# and #d=329# into the above equation,

#329=kcdot 7#

by dividing by #7#,

#=> k=329/7=47#.

Hence, the direct variation equation is

#d=47t#.

I hope that this was helpful.