Common-Core/ Grade 9
Maths MCQ Based On Scatter plots line of best fit
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Common-Core Grade 9 - 9 Scatter plots line of best fit
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They Must Be Located On The Given Line
y = mx + b
Recall the equation of slope.
(y = mx + b)
When one variable increases while the other variable decreases, a negative linear relationship exists.
As the graph is not a straight line, therefore it doesn't show a non-linear relationship.
See The Graph.
slope is the ratio of change in y-coordinate to the change in x-coordinate
They Must Be Located On The Given Line
When both variables increase or decrease concurrently and at a constant rate, a positive linear relationship exists.
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