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2001.
Use the data points to find a linear function that fits the data
Use the function to predict the average salary in 2005 and 2010
Data points:
(1,275000)
(11,1490000)
1,460,000275,000/111
M= 118,5000
Y275,000= 118,500(x1)
Y275,000 = 118,500x118,500
Y = 118,500x118,500+275,000
Y= 118,500x+156,500
Linear Function
S(x)= 118,500x+156,000
The predicted average salary for 2005 is
S(15)= 118,500(15)+156,000
S(15)= 1,933,500
The predicted average salary for 2010
S(20)= 118,500(20)+156,000
S(20)= 2,526,000
Determine whether the graphs of the two equations are perpendicular:
Y= 9x9
6y=7x
Y=9x9
Slope is 9
6y= x+7
Y= 1/6+7/6
Slope is 1/6
The graphs of the given equations are not perpendicular because the slopes are not negative reciprocals
of each other
The function, p(d) = 1+d/33, gives the pressure, in atmospheres (atm), at a depth d in the sea (d is in
feet). Note that p(0)=1atm, p(33)=2, and so on.
Find the pressure at 190 feet
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 Spring '09
 UniversityofPhoenix
 Algebra

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