Y Varies Directly with X

question 182

Multiple Choice

y varies directly with x . If y is - 12 when x is 2, find x when y is - 30.

• A) x = - 3
• B) x = 3
• C) x = 2
• D) x = - 5
• E) x = 5

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Definitions:

HA

Depending on context, this can refer to Hyaluronic Acid, a molecule involved in skin hydration and cellular functions, or Hemagglutinin, a protein on the surface of influenza viruses responsible for binding the virus to the host cell.

pH

A measurement system designed to determine the level of acidity or alkalinity in water-based solutions, marked on a continuum from 0 to 14.

K

In the context of chemistry, often represents the equilibrium constant, symbolizing the ratio of product concentrations to reactant concentrations at equilibrium.

pH

A numeric scale used to specify the acidity or basicity (alkalinity) of an aqueous solution, with 7 being neutral, values below 7 acidic, and above 7 basic.