Fitting a Linear Model to Data

Which equation defines the linear line of best fit for the data in the table?

The table shows the life expectancy of a person related to the year of birth. Which equation would give the best estimate of life expectancy, given the year of one's birth?

The table shows the clothing purchases Jenny made last month and the tax charged for each purchase. Which equation represents the line that best fits the data?

The table below shows the relation between the number of members in a club selling plants and the predicted number of plants sold. Using the data shown, which equation could be used to predict the number of plants the club will sell?

The table shows the relation between the number of students in science classes and the predicted number of students in each class going on a field trip. Using the data shown, which equation could be used to predict the number of students going on the field trip.

Look at the data in the given table. Which equation most closely represents the line of best fit for this data?

Michelle wants to carpet a room that is 215 square feet. The chart indicates selling price for rooms of different sizes. Based on these prices, what should Michelle expect to pay for her room?

• $1,505

• $1,515

• $1,523

• $1,513

The number of complaints a company received at the end of each of the six weeks is shown in this table. Based on the line of best fit, how many complaints should the company expect at the end of week 8?

• 75

• 96

• 110

• 91

The table shows the relation between the number of members in a club selling plants and the predicted number of plants sold. Using the data shown above, how many plants would be expected to be sold if there were 50 members in the club?

• 96

• 31

• 143

• 19

The given table shows the weight (lbs) of a baby as his age (months) increases. Use the data to predict how much the baby will weight at 12 months of age.

• 25.1 lbs

• 22.3 lbs

• 28.5 lbs

• 24.2 lbs