Business Calculus Online 1.3-1.7
04/09/2017 MyOpenMath Assessment
https://www.myopenmath.com/assessment/printtest.php 1/2
Name: Kevin Yang 1.3
#1 Points possible: 1. Total attempts: 0
A town's population has been growing linearly. In 2003 the population was 20,000. The population has been growing by 2200 people each year.
Write an equation for the population, P, years after 2003.
P =
Use the formula to find the population in 2009:
#2 Points possible: 1. Total attempts: 0
Find the slope of the line that goes through the points (7,8) and (0,15).
Slope, =
Enter your answer as an integer or a reduced fraction in the form A/B
#3 Points possible: 1. Total attempts: 0
A phone company charges for service according to the formula: , where is the number of minutes talked, and is the monthly charge, in dollars.
The rate of change in this equation is:
The initial value in this equation is:
#4 Points possible: 1. Total attempts: 0
Terry is skiing down a steep hill. Terry's elevation, , in feet after seconds is given by .
The equation tells us that Terry started and his is by
#5 Points possible: 1. Total attempts: 0
If is a linear function, , and , find an equation for
=
04/09/2017 MyOpenMath Assessment
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#6 Points possible: 1. Total attempts: 0
A clothing business finds there is a linear relationship between the number of shirts, ,it can sell and the price, , it can charge per shirt. In particular, historical data shows that shirts can be sold at a price of , while shirts can be sold at a price of . Give a linear equation in the form that gives the price they can charge for shirts.
Answer: Round the value of your slope to three decimal places. Be careful to use the proper variable and use the Preview button to check your syntax before you submit your answer.
#7 Points possible: 1. Total attempts: 0
Given the equation
The intercept is:
The intercept is:
#8 Points possible: 1. Total attempts: 0
Find the point at which the line intersects the line
( , )
#9 Points possible: 1. Total attempts: 0
Supply & Demand
In supply (and demand) problems, is the number of items the supplier will produce (or the public will buy) if the price of the item is .
For a particular product, the supply equation is
and the demand equation is
What is the intersection point of these two lines? Enter answer as an ordered pair (don't forget the parentheses).
What is the selling price when supply and demand are in equilibrium? price = $ /item
What is the amount of items in the market when supply and demand are in equilibrium? number of items =