Saturday

April 19, 2014

April 19, 2014

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.

**Related Questions**

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

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

Statistics - From random sample of 200 college students, 40 students indicated ...

algebra - a survey of 70 customers was taken at a bookstore regarding the type ...

Statistics - The nicotine content in cigarettes of a certain brand is normally ...

algebra - Two commons sources of nicotine are cigarettes and cigars. Find the ...

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

Math - What are the 3 numbers that com after trillion. I'm talk about this- Ex: ...

General - How do you feel about the idea of "snack-size" cigarettes? Smaller ...

statistics - A tobacco company claims that the nicotine content of its "light" ...