Asked by htht

Marta believes that the equation of the line of best fit for the scatterplot below is y=-5/9x+ 23/9. Which statement best summarizes why Marta is likely incorrect?

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Marta’s equation has a positive y-intercept, but the scatterplot suggests a negative y-intercept.
Marta’s equation has a positive y-intercept, but the scatterplot shows a negative correlation.
Marta’s equation has a negative slope, but the scatterplot suggests a negative y-intercept.
Marta’s equation has a negative slope, but the scatterplot shows a positive correlation.

All Answers 1

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

Explanation: y = -5/9 x + 23/9 has a negative slope (−5/9). The points in the scatterplot trend upward from left to right, so the line of best fit should have a positive slope, not a negative one.