Concept explainers
i.
The system and write the least square regression parabola.
Given:
The system of equation,
Calculation:
The system of equation is:
It can be written in matrix form as,
The augmented matrix is:
Using row transformations,
That is,
The equation of parabola is,
ii.
The least square regression parabola.
Given:
Calculation:
iii.
The expenditure in 2020.
The expenditure in 2020 is 13.13.
Given:
Calculation:
For expenditure in 2020
Therefore,
Chapter 7 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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