Using Equations to Represent Trend Lines

Question 1

These scatterplots represent the monthly sales and advertising costs of a company. Which trend line is the best fit for the data?

Revolt · Accepted Answer

Answer image: https://r12.core.learn.edgenuity.com//media.edgenuity.com/EVresources/3108-04-05-25-01-task/mc001-4.jpg

Question 2

Point 2:

Revolt · Accepted Answer

(6.6, 120)

Question 3

Question 3

Revolt · Accepted Answer

(6.4, 117); (6.6, 120)

Question 4

Which two points can be used to find the slope of the trend line?Point 1: Point 2:

Revolt · Accepted Answer

(6.4, 117); Selection 1: (6.4, 117); Selection 2: (6.6, 120)

Question 5

Using the points (6.4, 117) and (6.6, 120), what is the slope of the trend line?

Revolt · Accepted Answer

15

Question 6

The slope of the trend line is 15. What does that mean in regard to the data of the scatterplot? Check all that apply.

Revolt · Accepted Answer

The slope represents the rate of change of the data.; Sales increase $15,000 as ads increase by $1,000.; A positive slope infers a positive correlation.

Question 7

y = 15x + b

Revolt · Accepted Answer

21

Using Equations to Represent Trend Lines Answers

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