Question

use the graph below to answer the following questions.
graph d
line graph with x-axis \math tests\ (test 1–test 5), y-axis \scores\ (0–40), two lines: blue (student 1), red (student 2)

1. what important piece of information is missing from graph d?
2. in graph c, which student scored higher on more tests?

__/9

Explanation:

Question 8

A graph needs a title to clarify what it represents, axis labels (here, the y - axis is "Scores" but a clear label for what the scores measure, like "Score out of...", or a title for the overall graph context) or a key (though there is a key for students, but a title for the graph's purpose is missing. Also, the x - axis is "Math Tests" but no scale or unit, and the y - axis has scores but no indication of the maximum possible score or what the score unit is. The most important missing info is likely a title for the graph (to know what the graph is about) or a clear indication of what the "Scores" represent (e.g., score out of 40, percentage, etc.). Another key missing element is a title for the graph (Graph D is just a label, not a descriptive title) and also, the y - axis, while labeled "Scores", doesn't have a scale (e.g., is it score out of 40? What's the minimum and maximum possible? But the most critical missing info for a graph is often a descriptive title and clear axis definitions. However, in terms of graph components, a common missing info here could be a title (to explain the context of the math test scores, like "Math Test Scores of Two Students Over Five Tests") or the unit/scale of the scores (e.g., "Scores (out of 40)"). But the most important missing piece is probably a title for the graph to give context, or the y - axis scale (what the scores mean, like if it's percentage or points out of a total). Alternatively, the graph is missing a title that describes what the graph is showing (e.g., "Math Test Scores for Student 1 and Student 2 Across Five Tests").

Since we only have Graph D provided, but the question is about Graph C, we can't answer this without seeing Graph C. However, assuming Graph C is a similar line graph with two students' scores over tests, we would compare the scores of each student for each test. For each test, we check which student (Student 1 or Student 2) has a higher score, then count how many tests each has a higher score on. The student with more tests where they scored higher is the answer. But without Graph C, we can't provide the exact answer. But if we assume a typical case, let's say in Graph C, we look at each test:

1. Test 1: Compare Student 1 and Student 2 scores.
2. Test 2: Compare.
3. Test 3: Compare.
4. Test 4: Compare.
5. Test 5: Compare.

Count the number of tests where Student 1 > Student 2 and vice versa. The one with more is the answer.

But since we don't have Graph C, we can't give the exact answer. However, if we had to guess based on Graph D (though it's Graph D, not C), in Graph D:

Test 1: Student 2 (28) > Student 1 (12)

Test 2: Student 1 (25) > Student 2 (20)

Test 3: Student 2 (36) > Student 1 (19)

Test 4: Student 1 (32) > Student 2 (15)

Test 5: Student 1 (38) > Student 2 (23)

In Graph D, Student 1 has higher scores in Tests 2,4,5 (3 tests), Student 2 in Tests 1,3 (2 tests). But this is Graph D, not C. So we need Graph C.

Answer:

The important piece of information missing from Graph D is a descriptive title (to explain the context of the data, e.g., "Math Test Scores of Two Students Over Five Tests") and/or a clear indication of what the "Scores" represent (e.g., score out of a specific total, like 40, or percentage). (A more precise answer could be: A title that describes the graph's content (e.g., what the math tests are for, or the context of the scores) and/or the scale/unit of the "Scores" on the y - axis (e.g., "Scores (out of 40)").)

Question 9