Concept explainers
First-class postage The postage charged for first-class mail is a function of its weight. The U.S. Postal Service uses the following table to describe the rates.
Weight Increment | Rate($) |
First ounce or fraction of an ounce Each additional ounce or fraction | 0.490.21 |
Convert this table to a
Find the domain and range of P as it is defined above.
Give the domain and range of P as it is defined above.
Find the postage for a 2-ounce letter and for a 2.01 ounce letter.
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Chapter 2 Solutions
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- Life Insurance The monthly rates for a $100,000 lifeinsurance policy for males aged 27–32 are shown inthe table. a. Could the data in this table be modeled by aconstant function or the identity function?b. Write an equation whose graph contains the datapoints in the table.c. What is the slope of the graph of the functionfound in part (b)?d. What is the rate of change of the data in the table?arrow_forwardShell gas station is having a sale on diesel. If you buy 6 gallons or less, you pay the regular price of $2.29 per gallon. If you buy more than 6 gallons, you pay $1.99 per gallon. Write a piecewise function for the price of nn gallons of diesel at Shell.arrow_forwardSet up the function. 500 study tables at 3500 each. For each 10% increase in unit price, 150 tables will be supplied. a.) 500x+3500y=0b.) 7/3y+700/3x=0c.) 7/3x-y+7000/3=0d.) other:____________________arrow_forward
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- “All Items 30% Off Marked Price” is a sign in a local department store. Form a function and then use it to determine how much one must pay for each of the following marked items: a $65 pair of shoes, a $48 pair of slacks, a $15.50 belt.arrow_forwardin a Washington town the charge for commercial ways collection is $694.55 for 5 tons of waist and $1098.62 for 8 tones of waste find a linear formula for the cost of waste collection as a function of the weight in tonsarrow_forwardA car was purchased for $22,500. Asume that is depreciates in value by 6% per year. Find a function V that models the value of the car after t years. Use the function to estimate the value after 8 years and 12 years.arrow_forward
- Functions and Change: A Modeling Approach to Coll...AlgebraISBN:9781337111348Author:Bruce Crauder, Benny Evans, Alan NoellPublisher:Cengage Learning