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Assume that y varies directly with x

0 votes

then solve. If y=-6.6 when x=9.9, find y when x=6.6.

y=?

directly
direct-variation
proportion

asked Sep 21, 2018 in ALGEBRA 2 by anonymous

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1 Answer

0 votes

If y varies directly with x then it should satisfy the equation y = mx ----------> (1)

Substitute y = -6.6 and x = 9.9 in Eq (1)

-6.6 = m (9.9)

m = (-6.6) / (9.9)

m = -2/3

Substitute x = 6.6 and m = -2/3 in Eq (1)

y = (-2/3) 6.6

y = -4.4

Answer :

y = -4.4

answered Sep 22, 2018 by homeworkhelp Mentor

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