Interpreting Trend Lines Scatterplot
Authored by Anthony Clark
Mathematics
8th Grade
15 Questions
CCSS covered
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following would be the most accurate equation for the scatter plot?
y = -2x - 7
y = -x + 7
y = 3x + 7
y = 25x + 7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the slope of this trend line?
70
-3
Tags
CCSS.8.EE.B.5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If m = 8/5 and b = -8/5, what is the equation of the trend line in y= mx + b?
0 = 8/5 (1) - 8/5
y = -8/5 x + 8/5
y = 8/5 x - 8/5
y = mx + b
Tags
CCSS.8.F.A.3
CCSS.8.EE.B.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If m = -3/4 and b = 9, what is the equation of the trend line in y= mx + b?
0 = -3/4 (9) +9
y = -3/4 x + 9
y = -3/4 x - 9
y = 3/4 + 9
Tags
CCSS.8.F.A.3
CCSS.8.EE.B.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many chapters would be in a book with 180 pages.
12 chapters
15 chapters
18 chapters
21 chapters
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What type of association does this graph have?
positive
negative
none
all of the above
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?
The more books students read, the lower their English grade.
The more books students read, the higher their English grade.
The fewer books students read, the higher their English grade.
No relationship exists between the number of books students read and their English grades.
Tags
CCSS.8.EE.B.5
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