Question 4 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY
Use the graphing calculator tool to plot the residual points. open paren 1 comma 0 point 8 6 close paren comma open paren 2 comma negative 0 point 2 5 close paren comma open paren 3 comma negative 1 point 6 6 close paren comma open paren 4 comma negative 2 point 3 4 close paren comma open paren 5 comma negative 4 point 1 close paren Does the residual plot show that the line of best fit is appropriate for the data?
Answer
A
Yes, the points have no pattern.
B
No, the points are in a linear pattern.
C
Yes, the points are evenly distributed about the x -axis.
D
No, the points are in a curved pattern.
Explanation
The residuals decrease as x increases: they go from 0.86 to −4.1 in a roughly straight-line pattern. Residuals should have no clear pattern around the x-axis when a line of best fit is appropriate. Since these residuals show a linear pattern, the line is not appropriate; the correct choice is “No, the points are in a linear pattern.”
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