The variable fvaries inversely as the square root of g. When f= 4, g = 4. Jordan's work finding the value of fwhen g = 100 is

Question

The variable fvaries inversely as the square root of g. When f= 4, g = 4. Jordan's work finding the value of fwhen g = 100 is shown:
f√g = k
4(4) = k
16 = k
f√g = 16
f√100 = 16
10f=16
f= 1.6
What is the first error, if any, in Jordan's work?
A.He used an equation that models direct variation instead of inverse variation.

B.He substituted incorrectly when calculating the constant of variation.

C.He took the square root of the wrong variable.

D.He did not make any errors.

Kunduz · Accepted Answer

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