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Module 8: Analysis · Lesson 43 of 46
SLOPE & INTERCEPT
Fit a trend line to test data.
Step 1 of 20%
A spring test gives force at each extension. The slope of force vs. extension is the spring constant. In E1, use =SLOPE(known y's, known x's).
Target: E1
A1
| A | B | C | D | E | F | |
|---|---|---|---|---|---|---|
| 1 | Extension (mm) | Force (N) | Spring constant (N/mm) | |||
| 2 | 0 | 0.1 | Intercept (N) | |||
| 3 | 5 | 24.9 | ||||
| 4 | 10 | 50.2 | ||||
| 5 | 15 | 74.8 | ||||
| 6 | 20 | 100.1 | ||||
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| 21 | Intercept (N) | |||||
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Arrow keys move · drag or shift-click to select a range · Ctrl/Cmd+D fill down · Ctrl/Cmd+R fill right · Alt+= AutoSum · F4 toggles $