Line of Best Fit
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
find line of best fit through these points
y=1.27x+1.62
y=2x+7
y=1.7x+8
y=1.62x + 1.27
Tags
CCSS.8.EE.B.5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
find line of best fit using graphing calculator through these points (0,0) (1,2) (3,5) (6,7)
y=65x+7
y=1.14x+.64
y=1.5x+64
Tags
CCSS.8.EE.B.5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the line of best fit is given, y = 31.45x - 242.3, where x represents hours and y represents income...
Determine the predicted income if 22 hours were worked on an assembly job.
$207.30
$449.60
$691.90
$543.30
Tags
CCSS.HSF.LE.B.5
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Which would best fit the following data:
{(-15, 53.5), (-14, 28), (-3, 18), (0, 4), (6, 27), (14, 50)}
Hint: Put the table or points into DESMOS and look at what shape they take
Line of best fit
Curve of best fit
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a line of best fit used for?
To make predictions
To make the graph look pretty
To connect the points
To make it look like you know what you are doing
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Which would best fit the following data:
{(-15, 53.5), (-14, 28), (-3, 18), (0, 4), (6, 27), (14, 50)}
Choose ALL correct answers.
Linear Regression
Quadratic Regression
Line of Best Fit
Curve of Best Fit
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If this is an equation for a curve of best fit, find the output (y) when the input (x) is 13:
y = 1.2x2 - 3.7x - 19
-51.5
135.7
154.7
183,8
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