A.4C

The table below shows the number of hours studied and the corresponding test scores for a group of students:

| Hours Studied | Test Score |
|---|---|
| 2 | 65 |
| 4 | 75 |
| 6 | 85 |
| 8 | 95 |

Using a linear model, predict the test score for a student who studies 10 hours.

• 115

• 110

• 100

• 105

Which linear function best fits the data?

The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.

• f(x) = 25.05x + 5.57
• f(x) = 5.57x + 25.05
• f(x) = -5.57x + 25.05
• f(x) = 5.57x - 25.05

The table below shows the temperature (°C) at different times of the day:

| Time (hr) | Temperature (°C) |
|---|---|
| 6 | 12 |
| 9 | 16 |
| 12 | 20 |
| 15 | 24 |

Based on the data, what is the predicted temperature at 18:00?

• 26°C

• 28°C

• 32°C

• 30°C

A teacher made the following graph showing absences vs. final grades.  Predict the grade of a student that has 7 absences.

• 45
• 50
• 60
• 70