Question

Suppose z is proportional to the square root of x. If z = 717 when x = 9, find the proportionality constant k.??

Answer 1

Answer:

  239

Step-by-step explanation:

Write the equation. Fill in the given values, and solve for the unknown,

  z = k√x

  717 = k√9

  k = 717/3 = 239

The constant of proportionality is 239.

Answer 2

The proportionality constant of the proportional relationship is 239.

What is the proportionality constant?

The equation that can be used to represent a proportional relationship is :

z = k√x

Where:

• z = dependent variable
• k = constant
• x = independent variable

k = z / √x

k = 717 / √9

k = 239

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