Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 5 - Linear Functions - 5-2 Direct Variation - Lesson Check: 4

Answer

No, y does not vary directly with x.

Work Step by Step

The reason why we concluded that y does not directly vary with x is because we can see that as x increases, the value of y decreases. In order for y to vary directly with x, both variables have to increase and decrease in unison which does not happen here so we can assert that y does not vary directly with x but rather, varies inversely with x.
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