Answer:
The percent increase in the employment from the year to year
is
.
Step-by-step explanation:
Given:
Employment in the year
million.
Employment in the year
million.
To find: The percent increase in the employment.
Solution: We have,
Employment in the year
million.
Employment in the year
million.
Increase in employment million.
Percent increase
Percent increase
Hence, the percent increase in the employment from the year to year
is
.
9514 1404 393
Answer:
(a, b, c) = (-0.425595, 11.7321, 2.16667)
f(x) = -0.425595x² +11.7321x +2.16667
f(1) ≈ 13.5
Step-by-step explanation:
A suitable tool makes short work of this. Most spreadsheets and graphing calculators will do quadratic regression. All you have to do is enter the data and make use of the appropriate built-in functions.
Desmos will do least-squares fitting of almost any function you want to use as a model. It tells you ...
a = -0.425595
b = 11.7321
c = 2.16667
so
f(x) = -0.425595x² +11.7321x +2.16667
and f(1) ≈ 13.5
_____
<em>Additional comment</em>
Note that a quadratic function doesn't model the data very well if you're trying to extrapolate to times outside the original domain.
