Posted by **Patty G** on Saturday, July 18, 2009 at 1:54pm.

The linear equation

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?

- algebra -
**Marth**, Saturday, July 18, 2009 at 2:00pm
A) If the year 1997 is year x=1, then 1996 is year x = 0.

Add 4 to 1996 to get year x = 4

1996 + 4 = 2000

B) I assume you mean 2018. Subtract 1996, which is year x = 0

2018 - 1996 = 22

So 2018 is year x = 22

C,D) The equation is in the form y = mx + b.

y = 0.l5 x + 0.79

y = mx + b

m = 0.15

b = 0.79

m is the slope, and b is the y intercept.

## Answer this Question

## Related Questions

- Algebra - 3. The linear equation y=0.15x+.079 represents an estimate of the ...
- Algebra - The linear equation y=0.15x+0.79 represents an estimate of the average...
- 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 ...

More Related Questions