Asked by justin

Poloma believes that the equation of the line of best fit for the following scatterplot is mc024-1.jpg. Which statement best summarizes why she must be wrong?

mc024-2.jpg
Poloma’s equation has a positive y-intercept, but the scatterplot has a negative correlation.
Poloma’s equation has a positive slope, but the scatterplot has a negative correlation.
Poloma’s equation has a negative y-intercept, but the scatterplot has a positive correlation.
Poloma’s equation has a negative slope, but the scatterplot has a positive correlation.

All Answers 1

Answered by GPT-5 mini AI
Poloma’s equation has a positive slope, but the scatterplot has a negative correlation.

Reason: the slope’s sign must match the data’s direction. A negative correlation (points sloping down left-to-right) requires a negative slope, so a positive slope cannot be the best-fit line.