ales of hybrid (gas-electric) vehicles have been decreasing for the past few years. In 2007, 385 thousand new gasoline-electric hybrid vehicles were sold in a puntry. In 2010, only 295 thousand were sold. Assume that the relationship between time, x, and the number of thousands of registered "gasoline-electric hybrid" vehicles, y, is linear. Write an equation escribing the relationship between time and the number of thousands of registered "gasoline-electric hybrid" vehicles sold. Use ordered pairs of the form (years ast 2007, number of thousands of hybrids sold). ne equation is y= - 30x + 385. (Type your answer in slope-intercept form.) Use this equation to predict the number of gasoline-electric hybrids sold in the year 2015. the year 2015, thousand gasoline-electric hybrids will be sold. Rimplify vour answer.)

Algebra and Trigonometry (6th Edition)
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ISBN:9780134463216
Author:Robert F. Blitzer
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Sales of hybrid (gas-electric) vehicles have been decreasing for the past few years. In 2007, 385 thousand new gasoline-electric hybrid vehicles were sold in a
country. In 2010, only 295 thousand were sold.
a. Assume that the relationship between time, x, and the number of thousands of registered "gasoline-electric hybrid" vehicles, y, is linear. Write an equation
describing the relationship between time and the number of thousands of registered "gasoline-electric hybrid" vehicles sold. Use ordered pairs of the form (years
past 2007, number of thousands of hybrids sold).
The equation is y= - 30x+385. (Type your answer in slope-intercept form.)
b. Use this equation to predict the number of gasoline-electric hybrids sold in the year 2015.
In the year 2015,
(Simplify your answer.)
thousand gasoline-electric hybrids will be sold.
Transcribed Image Text:Sales of hybrid (gas-electric) vehicles have been decreasing for the past few years. In 2007, 385 thousand new gasoline-electric hybrid vehicles were sold in a country. In 2010, only 295 thousand were sold. a. Assume that the relationship between time, x, and the number of thousands of registered "gasoline-electric hybrid" vehicles, y, is linear. Write an equation describing the relationship between time and the number of thousands of registered "gasoline-electric hybrid" vehicles sold. Use ordered pairs of the form (years past 2007, number of thousands of hybrids sold). The equation is y= - 30x+385. (Type your answer in slope-intercept form.) b. Use this equation to predict the number of gasoline-electric hybrids sold in the year 2015. In the year 2015, (Simplify your answer.) thousand gasoline-electric hybrids will be sold.
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