$\"\"$

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(a)

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Height and head circumference of a child is represented by the $\"\"$ .

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Where

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$\"\"$ : Height of the child.

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$\"\"$ : Head circumference of a child.

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Solve the equation $\"\"$ for $\"\"$ .

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$\"\"$

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Head circumference $\"\"$ as a function of height $\"\"$ is $\"\"$ .

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$\"\"$

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(b)

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The equations are $\"\"$ and $\"\"$ .

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Find $\"\"$ .

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$\"\"$

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$\"\"$ .

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Find $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$ is the inverse of $\"\"$ .

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$\"\"$

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(c)

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Find head circumference of a child who is $\"\"$ inches tall.

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Head circumference of a child who is $\"\"$ inches tall is $\"\"$ inches.

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$\"\"$

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(a) Head circumference $\"\"$ as a function of height $\"\"$ is $\"\"$ .

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(b) $\"\"$ is the inverse of $\"\"$ .

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(c) Head circumference of a child who is $\"\"$ inches tall is $\"\"$ inches.