SOLUTION: A function that can be written in the form
y = ax^b
is said to be a power function. Some data sets can best be modeled by a power function. On a TI-83/84 calculator, the PwrReg
Algebra.Com
Question 1006256: A function that can be written in the form
y = ax^b
is said to be a power function. Some data sets can best be modeled by a power function. On a TI-83/84 calculator, the PwrReg instruction is used to produce a power regression function for a set of data. Find the power regression function for the following data. (Round your numerical values to five decimal places.)
x 1 2 3 4 5 6
y 2.4 5.4 9.7 14.4 19.8 26.0
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
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use given table to set the system of two equations and find and
..........if and
............eq.1
..........if and
............eq.2
solve the system:
............eq.1
............eq.2
--------------------------------------take a logarithm of both sides
............eq.1
............eq.2
------------------------------------------------
............eq.1
............eq.2
------------------------------------------------
............eq.1
............eq.2
------------------------------------------------
............eq.1......since we have
...........if log same then
find
............eq.2
your function is:
it doesn't fit; next to should be to the power of
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