4.10 Scatter Plots and Trend Lines

4.10 Scatter Plots and Trend Lines

Objectives:

• Students will be able to write an equation of a trend line and of a line of best fit.

• Students will be able to use a trend line and a line of best fit to make predictions.

Multiple Choice

Does this scatter plot show a positive trend, a negative trend, or no trend?

• positive trend

• negative trend

• no trend

Multiple Choice

Does this scatter plot show a positive trend, a negative trend, or no trend?

• positive trend

• negative trend

• no trend

Multiple Choice

Does this scatter plot show a positive trend, a negative trend, or no trend?

• positive trend

• negative trend

• no trend

Multiple Choice

Does this scatter plot show a positive trend, a negative trend, or no trend?

• positive trend

• negative trend

• no trend

Multiple Choice

Does this scatter plot show a positive trend, a negative trend, or no trend?

• positive trend

• negative trend

• no trend

Multiple Choice

Based on the scatter plot, which is a better prediction for y when x = 1?

• 3

• 9

Multiple Choice

Based on the scatter plot, which is a better prediction for y when x = 58?

• 61

• 2

Multiple Choice

Based on the scatter plot, which is a better prediction for y when x = 6?

• 2

• 8

Multiple Choice

Which graph shows the line of best fit for the data?

Multiple Choice

Which graph shows the line of best fit for the data?

Multiple Choice

Which graph shows the line of best fit for the data?

Homework

2 IXL Assignments (need a SmartScore of 70)

• 4.12 IXL #1 - state the kind of trend (positive, negative, or none) and choose the best prediction from a scatter plot

• 4.12 IXL #2 - ​identify the graph that shows the line of best fit for the data

Algebra I Concepts

5.7 Scatter Plots and Trend Lines