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MATH133 Unit 1 Individual Project A / (AIU)

Question # 00007560
Subject: Mathematics
Due on: 03/31/2014
Posted On: 01/31/2014 12:06 PM

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1) The following graph shows the depreciation for the corporate airplane from 2006
to 2009. The plane was purchased new in 2006; therefore, x = 0 represents the
year 2006.

X – axis (horizontal) = years starting from 0 = 2006 and increasing by 0.5 years
Y – axis (vertical) = price in $ amounts from 24,000 to 240,000
a) List the coordinates of two points on the graph in (x, y) form. The numbers on
the horizontal axis are 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, and 3.5.
(___, ___),(___, ___)

b) Find the slope (rate of depreciation) of this line:

c) Find the linear equation of this line in slope-intercept form.

d) If the rate of depreciation continues at the present rate, what will be the plane’s
value in the year 2019? Show how to use the linear equation from part c) to
obtain your answer.

2) Suppose that the width of a rectangle is 5 inches shorter than the length and that
the perimeter of the rectangle is 80 inches. The formula for the perimeter of a
rectangle is P=2L+2W.

a) Set up an equation for the perimeter involving only L, the length of the rectangle.

b) Solve this linear equation algebraically to find the length of the rectangle. Find
the width as well.

3) A marketing group developing online ad space is offering two payment options:
Option 1: $225 set up fee plus $10/inch of the ad
Option 2: No set up fee but $25/inch of the ad

Let x = inches of the proposed ad, for example, x = 2 for a column ad that is 2
inches long.

a) Write a mathematical model representing the total ad cost, C, in terms of
x for the following:
Option 1: C=_________________
Option 2: C=_________________

b) How many inches of ad space would need to be purchased for option 1
to be less than option 2? Set up an inequality and show your work
algebraically using the information in part a).

4) Graph the equations on separate graphs by completing the tables and plotting
the points. You may use Excel or another web-based graphing utility.

a) Complete the table using the given values of x and the equation y = -3x + 7.
b) Graph the equation here by plotting the points from your table.For help on

creating your graph in Excel and inserting graphs into a Word Doc please see the

tutorial in the Assignment List.

Tags project individual unit math133 option equation inches 0 rate points rectangle perimeter length axis linear graph graphs findthe purchased excel depreciation width using year list plotting horizontal space algebraically aignment 10inch total thetutorial cost

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MATH133 Unit 1 Individual Project A

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MATH_133_Unit_1_Individual_Project_A.doc (105 KB)
Preview: corresponding x value xxxx the graph xxxxx is 228000 xxx x x xx find xxxxxxxxxxxxx y value xxxx the graph xxxxx is xxxxxx xx Answer xxxxxx 1b Key xxxx steps Slope xxxxx Equation x xxxxx Equation x -12000 1c xxxxxx y -12000x xxxxxx 1c xxx xxxx steps xxxxxxxx the point xx 0, 216000) xxx slope xxxxxx x 216000 xxxxxxxx 2 0) x 216000 -12000x xxxxx y xxxxxxx xxxxx 216000 x -12000x 240000 xx Answer 84000 xx Key xxxx xxxxx 2019 xxxx 13 y xxxxxxx 240000 Put x 13 xx.....
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