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if you need farther help, ask :D

Um..I don't know..

Equation "B" as in finding the slope?

i mean another linear equation which i denote as "B", similar to equation "A" that I've set up above

Okay. I need clarification. My Algebra teacher solved this problem like this:
|dw:1354175590461:dw|

Can you explain what she (teacher) did there?

after solving for m, plug m back into either A or B to solve for b, and you get your equation :D

What is equation "A" & "B"?

equation "A" was shown earlier, remember? and "B" has a similar set up using the data given

Oh. Yeah. Of course. Could you solve 1b for me?

i can help you on 1b, but can you show me your 1a first :D

Okay. y = 1630(2002) +13190

^ is B

for B the year would be 2005, so x = ?

2002 is for A, which makes x = 2, what about B?

Yeah..I think I did something wrong with this equation

remember, x=0 mean 2000, that means x=1 is 2001, x=2 is 2002, x=3 is 2003 and so on

y = 1630(8) + 13190

thats for 1b, which means y = ?

y= 13040 + 13190
y = 26230

26230 = profit.

yep you got it :D

Although...?

$26230

Where did '5- 2" from the upper equation used to solve 1a come from?

that is from "X-x", where X = 5 for 2005, and x = 2 for 2002

Why did they need to be subtracted from each other?

Why did "5-2" have to happen? Why is that relevant?

What is B - A?

What..?

What is equation B minus equation A?

2005 - 2002? --> Used 5 from 2005, and "2" from 2002?

I don't know. That's why I'm asking you.

What is equation A and equation B? you should know this by now.

it means the rate of change of y with respect to x

Yes I know. But..

Your teaching methods..aren't helping me...that much. No offense.......

which is y = mx + b, where m and b are the value found using the above method.