webassign.net MyLab and Mastering 1.42 points ClarkAig1 1.6.022.M The gross prof

Question

webassign.net MyLab and Mastering 1.42 points ClarkAig1 1.6.022.M The gross profit for Exxon Mobil Corporation for various years is given here. Gross Profit Year (in billions of $) 2002 37 2003 47 2004 61 2005 75 2006 84 (a) What variables are appropriate? t (years since 2000) and R (gross revenue in biltions of dolars) t (years since 2000) and S (gross sales in billions of dolars) 5 (gross sales in biltions of dollars) and R (gross revenue in biltions of dollars) P (gross profit in billions of dollars) and S (gross sales in biltions of dollars) t (years since 2000) and P (gross profit in billions of dollars) (b) Find an equation for a model of these data. (Use the first and third values in the table to calculate your equation) (c) Give a reasonable domain and range for this model. 2, 71 135, 100) to, 10) to, 2010) S, 500)

Explanation / Answer

a) t years since 2000 and P ( gross profit in billuins dollars )

are appropriate values

last option is correct

b) slope = ( 61 - 37 ) / 2

m = 12

equation is

P = 12t + 13

c) domain is [ 2, 7 ]

range is [ 30, 92 ]

d) 110 = 12t+ 13

t = 8

in 2008 , gross profit will be 110 billion dollars

e) slope = 12 , this means there is increase of $ 12 billion in gross profits

last option is correct

f) in 2008 , exxon mobile corp has profit of $ 110 billion

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