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Q
uantitative
R
easoning &
P
roblem
S
olving
104
© 2014 Pacific Crest
Table of Phenomena
Fuel efficiency for weight of an automobile
Annual salary and weekly salary
Tax rate for a given adjusted taxable income
Relationship between Celsius and Fahrenheit
temperatures
Height of an arrow over time (shot from a bow)
Missile launch height over time
Average daily temperature over one year
Population growth over time
Radioactive decay over time
Strength of gravity as distance between objects
increases
Change in intensity of light as the distance from
the source increases
Amount of money accrued each year at 4%
compounded annually
Interest as portion of monthly mortgage pay-
ments at 4% interest rate for length of the loan
Decibel scale for sound (pressure)
The height of tides over time
Blood flow through an artery throughout a
heartbeat cycle
An electrocardiogram over time
First class mail charged per ounce
Length of the day (with sunlight) over a year
Hang-time for punts that reach different heights
Customizing a recipe to serve 4 instead of 12
W
hat Do You Already Know?
Tapping into your existing knowledge
1. What are five different families of functions?
2. How do you isolate the variable
y
in the equation
x
2
+
y
= 3?
3. How do you determine the domain of a function?
4. How do you graph a function?
5. What type of software can you use to graph a function?
6. What is an asymptote and how do you find one?
7. How do you determine if a function is increasing or decreasing?
M
athematical Language
Terms and notation
asymptote
— a value in the domain where the functional values approach infinity or negative infinity
or a value in the range that the graph functional values approach as the domain tends towards
positive or negative infinity
behavior of a function
— detailed description of a function across its domain
domain
— the values for which the function is defined
end behavior of a function
— what the function looks like at the start and end of its domain
range
— the values produced for all domain values
I
nformation
What you need to know
R
esources