You are given the value of a product in 2004 and the rate at which the value of the product is expected to change during the next 5 years. Write a linear equation that gives the dollar value V of the product in terms of the year t. (Let t = 0 represent 2000.)

156$, with $4.50 increase per year

Question

You are given the value of a product in 2004 and the rate at which the value of the product is expected to change during the next 5 years. Write a linear equation that gives the dollar value V of the product in terms of the year t. (Let t = 0 represent 2000.)

156$, with $4.50 increase per year

anonymous · Answer

Just tell me if I'm right? I got 178.5 dollars

parthkohli · Answer

Yep. That is correct.

parthkohli · Answer

But, that question also tells you to make an equation.

amistre64 · Answer

slope = rate of change of a linear equatio

phi · Answer

Write a linear equation

the answer is not a single number.  Use point slope to find the equation

parthkohli · Answer

The slope is already given, btw. @schmidtdancer

anonymous · Answer

Oh really... how would I make an equation??

anonymous · Answer

slope = 4.5
y intercept = 156 - 4.5*4

anonymous · Answer

note that t=0 starts at 2000, and the 156 price given is in 2004 !!

anonymous · Answer

so the equation comes to
y = 4.5x + 138

anonymous · Answer

Ok are u sure about that?^^ and is my 178.5 right?

anonymous · Answer

do you agree @ParthKohli

anonymous · Answer

?

anonymous · Answer

178.5 is the price in year (2004+5) = 2009 :)

changing variables according to question, the equation is
V = 4.5t + 138

anonymous · Answer

thanks so much

anonymous · Answer

yw :D