192k views
3 votes
Please help me out!!!!!!!!

Please help me out!!!!!!!!-example-1

1 Answer

2 votes

Answer:

x = - 6

Explanation:

Given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = - 9 when x = 3, thus

k =
(y)/(x) =
(-9)/(3) = - 3

y = - 3x ← equation of variation

When y = 18, then

18 = - 3x ( divide both sides by - 3 )

x = - 6

User Vangel
by
7.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.