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Using measuring tape, measure the length of your arm (in inches) from elbow to wrist.Also record your height (in inches) Find a partner and exchange
- Using measuring tape, measure the length of your arm (in inches) from elbow to wrist.Also record your height (in inches)
- Find a partner and exchange your measurements.This will give you two ordered pairs: (arm length, height)
- Each of you should use your ordered pairs to find the slope, and compare to make sure you have the same answer.
An alternate equation for a line isYou can get this in slope-intercept form by plugging in an ordered pair and the slope, and then solving for y.This is called point-slope form.
- Using the slope you obtained and your personal measurements, use the above equation to get your equation.Solve for y so that it is in slope-intercept form.
- Verify that your partner gets the same equation.
- Graph the line using the y-intercept, your point, and your partner's point.If you are correct, your line should go through all three.
- Tell us who your partner is
- find the slope
- get the equation
- Include the graph
Put your arm length in for x in the equation of your classmate, and see what height it corresponds with.Compare this to your actual height.Is it close?Very much off?
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