Question

The manager of a company made the graph below to show the value of a piece of office equipment after each of the 7 years following its purchase.

The graph titled value of equipment shows value on y-axis and time on x-axis. There are dots at (1, 7), (2, 6.5), (3, 6.4), (4, 4), (5, 2.5), (6, 2), and (7, 0.5).

Match the statement with the correct answer

Column A
1.
The slope of the line of best fit:
The slope of the line of best fit
2.
The y-intercept of the line of best fit:
The y-intercept of the line of best fit
3.
The graph of the line of best fit:
The graph of the line of best fit
4.
The correlation of the line of best fit:
The correlation of the line of best fit
5.
The equation for the line of best fit.:
The equation for the line of best fit.
Column B
Column B
a.Strong, positive trend
b.-1
c.Weak, negative trend
d.5
e.Weak, positive trend
f.Strong, negative trend
g.y = -x + 8
h.+1
i.y = 8x + 1
j.(0,8)
k.y = -8x + 1
l.




m.y = x + 8
n.y = 8x - 1
o.
The scatter plot titled value of equipment shows value in thousands of dollars from 0 to 10 and time in years from 0 to 10. The points on the scatter plot are (1, 7), (2, 6.5), (4, 4), (5, 2.5), (6, 2), (7, 0.5)

Answer 1

1. The slope of the line of best fit: -1
2. The y-intercept of the line of best fit: 8
3. The graph of the line of best fit: y = -x + 8
4. The correlation of the line of best fit: Weak, negative trend
5. The equation for the line of best fit: y = -x + 8

Note: There are no options in Column B for statements 11-15.