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QuizMultiple Choice
Using Equations to Represent Trend Lines
Question 1 • *WHS Pre-Algebra - MA3119 B-CR
Andrea’s work to find the equation of a trend line through the points (48, 61) and (72, 195) is shown below.Andrea’s Work Step 1Step 2Step 3Step 4What was the first error that Andrea made?
Answer
A
Andrea used the reciprocal of the slope.B
Andrea made a computational error when she simplified m.C
Andrea substituted incorrectly when she solved for b.D
Andrea made a sign error when she solved for b.