SOLUTION: 3. The linear equation y=0.15x+0.79 represents an estimate of the average cost of gas for year x starting in 1997 (“Consumer price index,” 2006). The year 1997 would be repr

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: 3. The linear equation y=0.15x+0.79 represents an estimate of the average cost of gas for year x starting in 1997 (“Consumer price index,” 2006). The year 1997 would be repr      Log On

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Question 446830: 3. The linear equation
y=0.15x+0.79
represents an estimate of the average cost of gas for year x starting in 1997 (“Consumer price index,” 2006). The year 1997 would be represented by x = 1, for example, because it is the first year in the study. Similarly, 2005 would be year 9, or x = 9.
b. What is the slope, or rate of change, of this equation?
c. What is the y-intercept?
d. What does the y-intercept represent?
Answer by josmiceli(19441) About Me  (Show Source):
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(b) The slope is .15
(c) The y-intercept is .79
(d) The y-intercept would be the average
cost of gas when x=0 , or for the
year 1996, since x=1 represents
1997