Scatter Plots, Line of Best Fit, Equations

Scatter Plots, Line of Best Fit, Equations

9th Grade

20 Qs

quiz-placeholder

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Scatter Plots, Line of Best Fit, Equations

Scatter Plots, Line of Best Fit, Equations

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Anthony Clark

Used 3+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which of the following would be the most accurate equation for the scatter plot?

y = -2x - 7

y = -x + 7

y = 4x + 7

y = 25x + 7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which of the following could be a possible line of best fit for the data?

y = -1.5x + 20

y = -0.5x + 19

y = x + 20

y = .7x + 15 

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding.  What is the equation of the line of best fit?

y = -25x + 170

y = 25x + 170

y = -(5/8) x + 170

y = (5/8) x + 170

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The graph shows a line of best fit for data collected on the amount of income earned by lawn companies in relation to the number of yards mowed.  What is the equation of the line of best fit?

y = (3/2) x

y = 30x

y = 30x + 300

y = (3/2)x + 300

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the equation of the line of best fit?

y = -25x + 170

y = -5/8x + 170

y = 25x + 170

y = 5/8x + 170

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Using Desmos.com, find an equation of the line of best fit for the data. Round the slope and the y-intercept to the nearest hundredth. Select the correct line of best fit.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the best equation of the line of best fit?

y= 2x+3

y=3x+2

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