Wednesday

July 23, 2014

July 23, 2014

Posted by **Marcus** on Friday, January 6, 2012 at 1:59pm.

y=0.15x+0.79

represents an estimate of the average cost of gas for year x starting in 1997. the year 1997 would be represented by x=1, for example, as it is the first year in the study. similarly, 2005 would be year 9, or x=9

A) what year would be represented by x=4?

B) what x-value represent the year 20018?

C) what is the slope (or rate of change) of this equation?

D) what is the y-intercept?

E) What does the y-intercept represent?

F) Assuming this growth trend continues, what will the price of gasoline be in the year 2018? How did you arrive at your answer?

- Algebra -
**Henry**, Saturday, January 7, 2012 at 4:30pmA.Yr = 1997 + (x-1)

Yr = 1997 + (4-1) = 2000.

B. X = (2018-1997) + 1 = 22.

C. Y = 0.15x + 0.79.

m = 0.15.

D. Y-int. = 0.79.

E.The cost of gas before 1997.

F. C = 0.15*22 + 0.79 = $4.09.

**Related Questions**

algebra - The linear equation y=0.15x+0.79 represents an estimate of the average...

Algebra - 3. The linear equation y=0.15x+.079 represents an estimate of the ...

equations - The linear equation y=0.15x + 0.79 represents an estimate of the ...

Math 116 - could someone please evaluate what i have so far and help me with the...

maath 116 - 3. The linear equation represents an estimate of the average cost of...

equations - I am not great at equations... I keep practicing and working these ...

equations - I am not great at equations... I keep practicing and working these ...

math - 1. Suppose you are at the gas station filling your tank with gas. The ...

algebra - 2. Examine the rise in gasoline prices from 1997 to 2006. The price of...

Algebra I - 1. Imagine you are at a gas station filling your tank with gas. The ...