Question

5
select the correct answer from each drop-down menu.
the graphs below show the number of faulty products, y, produced by a company for the first eight months since production started. both graphs show
the same information.
product quality
product quality
400
200
300
150
200
100
100
50
0
2
4
6
8
x
0
2
4
6
8
x
months
months
graph a
graph b
alex is preparing a report and plans to discuss how there was only a slight decrease in the number of faulty products over the first eight months.
complete the following sentences.
to support her discussion, it would be best for alex to use
for her presentation.
alex should use this graph for her presentation because the number of faulty products
on this graph.
reset
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Explanation:

1. For the first blank: Graph A has a y - axis range (0 - 400) that makes the decrease in the number of faulty products look less steep compared to Graph B (y - axis range 0 - 200). When the y - axis scale is larger, the same change in the number of faulty products will appear to be a smaller relative change. So to show a "slight decrease", Graph A is better.
2. For the second blank: On Graph A, the vertical axis (y - axis) has a larger scale. So the decrease in the number of faulty products from the start (around 150 - 200) to the end (around 100) over 8 months looks more gradual (slight) compared to Graph B, where the y - axis scale is smaller and the decrease looks more significant.

Answer:

To support her discussion, it would be best for Alex to use Graph A for her presentation.
Alex should use this graph for her presentation because the number of faulty products appears to have a smaller range of decrease (or seems to decrease slightly) on this graph.