Understanding BMI Calculations

The video tutorial explains how to calculate a person's Body Mass Index (BMI) using a specific formula. It covers how to derive a person's height from their BMI and weight, and provides examples of calculating height and weight for given BMI values. The tutorial also includes step-by-step solutions to these calculations, emphasizing the use of mathematical functions and simplification techniques.

What is the BMI range for a person to be classified as overweight?

• 18.5 to 24.9

• Below 18.5

• 25 to 29.9

• 30 and above

Which variable is squared in the BMI formula?

• 703

• BMI

• Height

• Weight

What is the purpose of deriving the function h(w)?

• To classify BMI categories

• To determine weight from height and BMI

• To calculate BMI from height and weight

• To find height from weight and BMI

If a person weighs 250 lbs and has a BMI of 25, what is their approximate height?

• 75 inches

• 83.8 inches

• 69 inches

• 90 inches

What is the first step in calculating height using the function h(w)?

• Multiply weight by 703

• Take the square root of the expression

• Square the height

• Divide weight by BMI

If a person is 69 inches tall and has a BMI of 25, what is their approximate weight?

• 169 lbs

• 180 lbs

• 150 lbs

• 200 lbs

What mathematical operation is used to eliminate the square root in the weight calculation?

• Addition

• Subtraction

• Squaring

• Division

What is the final step in solving for weight in the given example?

• Divide by 703

• Subtract 703

• Multiply by 703

• Add 703

What is the significance of the number 703 in the BMI formula?

• It is a conversion factor

• It is the weight in pounds

• It represents height in inches

• It is the average BMI

What is the approximate weight of a person who is 69 inches tall with a BMI of 25?

• 150 lbs

• 169 lbs

• 200 lbs

• 180 lbs