What is the quadratic regression equation?
2 answers:
Answer:
y = -0.078 x² + 8.407 x − 92.892
Step-by-step explanation:
Use a calculator or spreadsheet to find the least squares regression equation.
Answer:
y = -0.078x^2 +8.407x -92.892
Step-by-step explanation:
Any of various graphing calculators, spreadsheets, or statistical analysis tools can give you the coefficients for a quadratic regression.
Attached is the output of a graphing calculator. Rounded to thousandths, the equation is ...
y = -0.078x^2 +8.407x -92.892
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Answer: First option.
Step-by-step explanation:
Given the equation , you need to substitute
into this equation. Then:
Remember that the Addition property of equality states that:
Then, you can add "x" and 4 to both sides.
Therefore, you get the equation written in function notation, with "x" as the independent variable: