Sunday

February 1, 2015

February 1, 2015

Posted by **Kwame** on Saturday, May 12, 2012 at 7:35pm.

(a) Which of the following linear equations could be used to predict the number of trillions of cigarettes y purchased worldwide in a given year x, where x=0 represents the year 1972?

A. y=3.4x+4.3

B. y=0.9x-6.5

C. y=0.9x+3.4

D. y=0.075x+3.4

(b) Use the equation form part (a) to estimate the number of cigarettes purchased worldwide in the year 2008.

(c) Fill in the blanks to interpret the slop of the equation: The rate of change of cigarettes purchased worldwide with respect to time is _______ per_____. (include units of measurement.)

- Statistics -
**MathGuru**, Monday, May 14, 2012 at 8:37pma) If x = 0 represents the year 1972, then x = 12 represents 1984.

If x = 0 or x = 12, the equation that fits would be D (substituting those two values for x and solving for y).

b) If x = 0 represents the year 1972, then x = 36 represents the year 2008. Substitute 36 for x in the equation and solve for y.

c) I'll let you figure out this one.

**Answer this Question**

**Related Questions**

math - in fiscal year 2005, the federal government had revenues of $2.153 ...

Macroeconomics - The following calculations help you see how the ratio of debt ...

maceroenocmics - The money supply in $1 trillion, the price level equals 2, and ...

MacroEconomics - 1. The money supply is $1 trillion,the price level =2,and real ...

Macroeconomics - Consider the following data: The money supply in $1 trillion, ...

easyish MATH - for a project i need to graph numbers like: 3.456 billion, 92.07 ...

easy math - for a project i need to graph numbers like: 3.456 billion, 92.07 ...

Statistics - A manufacturer of a low-tar cigarette claims that their cigarettes ...

algebra - Find 5% of 70 trillion. Express in terms of millions, billions, and ...

Probability and Statistics - Can someone tell me what formula I should use? The ...