Question 9 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY
Raquel throws darts at a coordinate grid centered at the origin. Her goal is to create a line of darts. Her darts actually hit the coordinate grid at negative 5 comma 0 , 1 comma negative 3 , 4 comma 5 , negative 8 comma negative 6 , 0 comma 2 , and 9 comma 6 Which equation best approximates the line of best fit of the darts?
Answer
A
y is equal to 0 point 6 x plus 0 point 6
B
y is equal to 0 point 1 x plus 0 point 8
C
y is equal to 0 point 5 x plus 0 point 6
D
y is equal to 0 point 8 x plus 0 point 1
Explanation
The line of best fit has slope about 0.63 and y-intercept about 0.56. These values come from the six points: the average x-value is about 0.17 and the average y-value is about 0.67, and the least-squares slope is about 0.63. Rounding to the tenths shown in the choices gives y = 0.6x + 0.6, choice A.
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