Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary. x 0 3 4 5 12
y 8 2 6 9 12

a. y^=4.98+0.425x
b. y^=4.98+0.725x
c. y^=4.88+0.625x
d. y^=4.88+0.525x

gregory's graph is incorrect because it shows 2 inches of growth for each week when it should show 0.75 inches of growth each week.

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

2

step-by-step explanation: