Question

Use the table to answer the question.

This table shows x-values and corresponding y-values.


x y
-5 3
-4 4
-3 7
-2 7.5
-1 2.5



Use a calculator to determine the least squares regression line for the points in the table. Round to the nearest hundredth if necessary.

(1 point)
Responses

y=0.25x−5.55
y is equal to 0 point 2 5 x minus 5 point 5 5

y=0.25x+5.55
y is equal to 0 point 2 5 x plus 5 point 5 5

y=5.55x+0.25
y is equal to 5 point 5 5 x plus 0 point 2 5

y=5.55x−0.25
y is equal to 5 point 5 5 x minus 0 point 2 5
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Answer 1

y = 0.25x + 5.55

(Computed slope b = 2.5/10 = 0.25 and intercept a = 4.8 − 0.25(−3) = 5.55.)