B. triangle and triangular prism
Answer: Quadratic
Solution
X=0
X=- 1/3
18,38,38,40,44,44,44,46,48....
the mean with the outlier (18) included is : 360/9 = 40
38,38,40,44,44,44,46,48
the mean with the outlier (18) excluded is : (360 - 18) / 9 = 342/9 = 38
so when the outlier is removed, the mean is 2 points less
The slope of the trend line is -10
Hi it’s 13m hope that helps!