I don't understand it it's confusing
asked May 17, 2017 in Algebra 1 Answers by anonymous

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Which equation best represents the line of best fit for the scatterplot? A) y = x + 6 B) y = 2x + 6 C) y = -x + 6 D) y = -2x + 6

It would be better here if we had an idea of what the scatter plot looked like.

Let’s look at the four options.

A) y = x + 6

B) y = 2x + 6

C) y = -x + 6

D) y = -2x + 6

They are all straight lines.

They all have the same y-intercept. They all pass through the point y = 6.

Options A and B have positive slopes, while options C and D have negative slopes.

If the y-values of the points in your scatter plot are increasing as the x-values increase, then you should consider the first two options, A and B. Otherwise consider C and D.

A close scrutiny of the points in the scatter plot should give you an idea of just how fast they are increasing, or decreasing, and whether the slope is 1 (option A) or 2 (option B).

The above comments should help you to identify the correct choice for your scatter plot.

answered May 18, 2017 by Fermat Level 11 User (79,680 points)

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