The data in the chart below is for the distance (in cm) to the near point, the point nearest the eye at which the eye can accurately focus, at a person’s age. 

Age (years)	Near Point (cm)
10	7.5
20	9
30	11.5
40	17.2
50	52.5
60	83.3

 Instructions

Use a spreadsheet application to create a linear regression model for the data in the form y = mx + b, where x is age and y is near point. 

Using your model, predict the near point of someone who is 75 years old