Write a Trend Line from a Scatter Plot

Write a Trend Line from a Scatter Plot

Assessment

Interactive Video

Social Studies, Mathematics

1st - 6th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explains how to write the equation of a trend line from data in a scatterplot using point-slope form. It covers the basics of linear equations, scatterplots, and correlations. The tutorial demonstrates how to find a trend line by selecting points and calculating the slope. It also shows how to convert the equation into slope-intercept form. Real-world examples, such as car depreciation and customer trends in an ice cream store, illustrate the application of these concepts.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a positive correlation in a scatterplot indicate?

Data points show no discernible pattern.

Data points move upward from left to right.

Data points form a horizontal line.

Data points move downward from left to right.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the correct point-slope form equation?

y = mx + b

y = x1 + m(x - y1)

y = m(x - x1) + y1

y - y1 = m(x - x1)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you determine the slope of a trend line from two points?

Add the x-coordinates and y-coordinates of the points.

Divide the difference in y-coordinates by the difference in x-coordinates.

Multiply the x-coordinates by the y-coordinates.

Subtract the x-coordinates from the y-coordinates.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example of a car's value, what does the slope of -2 represent?

The car's value increases by $2,000 each year.

The car's value decreases by $200 each year.

The car's value decreases by $2,000 each year.

The car's value remains constant.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the slope of the trend line in the ice cream store example?

2/1

1/2

25/24

24/25

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