The variable f varies inversely as the square root of g. When f = 4, g = 4. Jordan’s work finding the value of f when g = 100 is shown: f = k
4(4) = k
16 = k

f = 16
f = 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.