Tweet # Common Core Standard 8.SP.A.2 Questions

Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.

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Grade 8 Scatter Plots CCSS: 8.SP.A.2
Which equality has the best line fit for the data shown below?
x - 0, 1, 2, 3, 4
y - 0, 3, 6, 9, 12
1. $y=x+3$
2. $y=3x$
3. $y=-3x$
4. $y=x-3$
Grade 8 Scatter Plots CCSS: 8.SP.A.2
Which of the equations below best represents the line with the following points?
x - 0, 1, 2, 3, 4
y - 10, 9, 8, 7, 6
1. $y=x+10$
2. $y=-x-10$
3. $y=x-10$
4. $y=-x+10$
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