Math Problem Statement
Solution
The table asks you to calculate residuals for the given values based on the model .
Here's the process:
-
Calculate the y-value from the model:
The formula is .
For each , calculate . -
Find the residual:
The residual is .
For each value of , subtract the calculated from the observed .
Let’s go through it step by step:
1. First row (already filled out)
- :
.
Residual: .
2. Second row (partially filled out)
- :
.
Residual: .
3. Third row
- :
.
Residual: .
4. Fourth row
- :
.
Residual: .
5. Fifth row
- :
.
Residual: .
6. Sixth row
- :
.
Residual: .
7. Seventh row
- :
.
Residual: .
8. Eighth row
- :
.
Residual: .
Completed Table:
x | y | y-value from model | Residual |
---|---|---|---|
-4 | -18 | -21 | 3 |
-3 | -13 | -17 | 4 |
-2 | -10 | -13 | 3 |
-1 | -7 | -9 | 2 |
0 | -2 | -5 | 3 |
1 | 0 | -1 | 1 |
2 | 6 | 3 | 3 |
4 | 15 | 11 | 4 |
Would you like more details on the residuals, or do you have any questions?
Here are some related questions:
- How do residuals help measure the accuracy of a model?
- Can residuals be negative, and what does that indicate?
- What would the residual be if the observed matches the predicted ?
- How can you tell if a model is a good fit based on residuals?
- How do you calculate residuals for non-linear models?
Tip: When residuals are close to zero, it indicates the model predicts the data well.
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Math Problem Analysis
Mathematical Concepts
Residuals
Linear Equations
Formulas
y = 4x - 5
Residual = y_observed - y_model
Theorems
-
Suitable Grade Level
Grades 9-12
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