Describe the association, if any, as linear or nonlinear.
Interpreting Line of Best Fit

Quiz
•
Mathematics
•
8th Grade
•
Hard
Anthony Clark
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Linear
Non-linear
No Association
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is the equation of the line of best fit? Use points (40, 15) and (80, 30) to help you find the slope.
y = 0. 625x + 0
y = 0.375x + 10
y = 0.52x + 0
y = 0.375x + 0
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is the equation of the line of best fit? Use points (2, 6) and (4, 1) to help you find the slope.
y = 2.5x + 11
y = -2.5x + 11
y = -3x + 10
y = -2x + 11
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The y-intercept of this line is 11. This means Mia will make about 11 mistakes if she practices for ______ hours.
0
1
2
3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The slope of this line is -2.5. This means Mia will make about ______ fewer mistakes each hour she practices.
1
2.5
2
5
3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The y-intercept of this line is 40. This means that if a student doesn't study, they will receive a 40.
True
False
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The equation of this line of best fit is y = -75x + 4500.
Predict how many text messages a person who is 55 years old would send. (HINT: PLUG IN 55 for x into the equation)
375
400
425
450
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