Use the Product Rule to Simplify Square Roots
-The Average $y = 2.9 \sqrt { x } + 20.1$

question 42

Multiple Choice

Use the Product Rule to Simplify Square Roots
-The average height of a boy in the United States, from birth through 60 months, can be modeled by $y = 2.9 \sqrt { x } + 20.1$ where $y$ is the average height, in inches, of boys who are $x$ months of age. What would be the expected difference in height between a child 36 months of age and a child 25 months of age?

• A) \(2.9\) inches
• B) \(43.1\) inches
• C) \(17.4\) inches
• D) \(4.9\) inches

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