i. introduction
a. whenever data is collected, it is often presented in a meaningful way so that others can view and make sense of it. often the data will be presented in a ______________ or a ____________.
data tables are a way of ______________ the information. graphs are ____________________ that represent ____________________.
b. as a student, it is important that you master these essential skills:
1. interpreting and reading graphs
2. constructing data tables
3. constructing different types of graphs (line graphs, bar graphs, circle graphs)
4. critical thinking and problem solving
ii. interpreting graphs
a. study the line graph to the right and answer the following questions.
1. what information is being shown in this graph? ____________________
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2. describe the results shown for corn plants. ____________________
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3. describe the results shown for oak seedlings. ____________________
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4. describe the results shown for rose bushes. ____________________
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5. at what fertilizer concentration do oak seedlings stop improving? ____________________
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Question

Accepted Answer

### Part I A
# Brief Explanations:
When data is collected, common presentation methods are data tables and graphs. Data tables organize info, graphs are visual tools representing data relationships.
# Answer:
blank 1: data table; blank 2: graph; blank 3: organizing; blank 4: visual tools; blank 5: data (or relationships between variables)

### Part II A 1
# Brief Explanations:
The graph's axes: x - fertilizer amount (mg/L), y - average plant height (cm). It shows how fertilizer amount affects height of corn, oak, rose.
# Answer:
The graph shows the relationship between the amount of fertilizer (in mg/L) and the average height (in cm) of corn plants, oak seedlings, and rose bushes.

### Part II A 2
# Brief Explanations:
Corn plant's line: as fertilizer (0 - 300 mg/L) increases, height (from ~5 cm) rises steadily, e.g., at 200 mg/L ~30 cm, 300 mg/L ~32 cm.
# Answer:
The average height of corn plants increases as the amount of fertilizer increases (from 0 to 300 mg/L). Starting from around 5 cm at 0 mg/L of fertilizer, the height rises steadily, for example, reaching around 30 cm at 200 mg/L and approximately 32 cm at 300 mg/L.

### Part II A 3
# Brief Explanations:
Oak seedlings: height (starts ~10 cm) increases with fertilizer up to ~150 - 200 mg/L (reaches ~22 cm), then decreases (to ~15 cm at 300 mg/L).
# Answer:
The average height of oak seedlings increases with the amount of fertilizer up to a certain concentration (around 150 - 200 mg/L, reaching about 22 cm) and then decreases as the fertilizer concentration continues to increase (dropping to around 15 cm at 300 mg/L).

### Part II A 4
# Brief Explanations:
Rose bushes: height (starts ~27 cm) decreases as fertilizer (0 - 300 mg/L) increases, ending at ~3 cm at 300 mg/L.
# Answer:
The average height of rose bushes decreases as the amount of fertilizer increases (from 0 to 300 mg/L). Starting from around 27 cm at 0 mg/L of fertilizer, the height drops steadily, reaching approximately 3 cm at 300 mg/L.

### Part II A 5
# Brief Explanations:
Oak seedlings' height stops increasing (starts decreasing) around 150 - 200 mg/L (when height peaks at ~22 cm, then falls).
# Answer:
Oak seedlings stop improving (their height stops increasing and starts to decrease) at a fertilizer concentration of around 150 - 200 mg/L (or more precisely, around 200 mg/L as the height peaks around that point and then declines).

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QUESTION IMAGE

Question

Explanation:

Part I A

Answer:

Part II A 1