A calculator was used to perform a linear regression on the values in the table. The results are shown to the right of the table. y 10 LinReg y = ax+b a--3.1 3 b-12.9 r 29886831276 r=-.9943254636 -2 What is the line of best fit? O A. y=12.9x= 3.1 O B. -0.994 = -3.1x 12.9 C. y=-3.1x+12.9 D. y=-0.994x + 12.9

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

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