Question

The table and scatterplot show the additional plant growth measured each day for particular days.
Which two points should the trend line go through to best represent the data given in this scatterplot?
Time
(days)
Growth
(inches)
2
1
3
1.5
4
2.75
5
2
6
2
8
3
10
1.75

mc006-1.jpg
(2, 1) and (3, 1.5)
(2, 1) and (5, 2)
(6, 2) and (8, 2)
(6, 2) and (10,1.75)

Answer 1

(2, 1) and (5, 2)

A line through these two points has slope 1/3 and passes near the other points (it even goes through (8,3)), so it best represents the overall upward trend.