May 10, 2016
I was not ever allowed to have a phone growing up. One day I begged my parents to
allow me to get my own phone and they agreed under some conditions: Id have to do more
chores to g
April 18, 2016
The coffee grinder is a very simple piece of technology. Whole coffee bean goes in and
grinded coffee comes out.
When the coffee grinder is connected to an outlet, electricity is given to the c
1. Problem Description
a. People would need this device to grind coffee and other foods. The problem it
would solve would be providing grinded coffee to end up being able to put it
in a coffee machine. A way
February 17, 2016
Over winter break on New Years day, I was in a car with my roommate and her family.
When we turned a street, the car a 2001 Chevrolet Truck Suburban 1500 4WD 5.3L SFI 8cyl
started to make
The appliance I decided to write about is the blender. The main input of the blender is
whole foods, and the main output is blended food. Some important components of the blender
are the jar, blades, fan, motor, cord,
January 13, 2016
One thing that definitely fascinates me about technology is how systems were once
very big. Now everything keeps getting smaller and smaller. A couple years ago phones
were getting extremely small, but that changed
9: Exponential Functions - Answers
2. The both have constant rates. Linear functions have a constant rate of change (the
same number is added to outputs of successive inputs). Exponential functions have a
constant growth factor (the same nu
4: Displaying Data - Answers
1. They are both ways to organize quantitative data into groups. A frequency
distribution is in table form, a histogram is graphical.
2. It is easy to organize data in a frequency distribution and you can get a better feel for
7: Linear Functions - Answers
1. A function where the rate of change, (change in input)/(change in output), is constant
over the entire domain of the function.
2. Slope and y-intercept
b) y 3 x 2
4. f(2) = 3; f (3) = 5; f(10) = 19
5. f(2) =
3: Applications of Graphs - Answers
The person started about 4 feet away from the motion detector and walked away
at a constant rate about 4 feet. Then the person stopped for about 4 seconds
before continuing walking away at the same con
8: Regression and Correlation - Answers
a) 14.55 lbs.
b) 85.85 lbs. This is not reasonable (it is too high) since a child's weight gain does
not remain constant
c) The y-intercept would change to 8.5 and the equation would be y = 2.1x
5: Describing Data: Mean, Median, and Standard Deviation - Answers
c) For part (b) you just need to find the middle number, for part (a) you need to find
the average of the two middle numbers.
2. The mean is 49.9 3 and the median is 46.
6: Multivariable Functions and Contour Diagrams - Answers
1. Multivariable Function
2. For example, someones body mass index (BMI) is determined using a multivariable
function where the persons height and weight are the inputs.
3. f(1,2) is the output of
1: Functions - Answers
1. Symbolic (e.g. y = 2x + 7), graphical (e.g. gas prices over time), numerical (e.g. table
of data, such as test scores), and verbal (e.g. an explanation of how the circumference
of a circle increases as the diameter increases).
2: Graphical Representations of Functions - Answers
2. Yes. For each input (time) there is at most one output (temperature.)
Horizontal: amount of gasoline; Vertical: cost
Horizontal: horsepower; Vertical: time
Horizontal: day; Vertic