Help with a problem please.

[LePecan]

Hey guys, I need help with a problem I'm trying to work out. I'm working on quadratics but I'm finding it confusing. I have a sample problem and if someone could help me out and solve it with steps it would be a huge help. Thanks! Heres the problem,


After an action figure is released, its value, in dollars, decreases over time until the figure becomes difficult to find. Then the value starts to increase because it has become a collector's item. The value of a certain figure t years after its release can be modeled by the function v(t)=10t^2-46t+120. How long will it take for the action figure to be worth the same as when it was released?

Again, thanks for the help.

 

[lev888]

What do you think? What's the initial value?

 

[Dr.Peterson]

Here's a second hint: You will be solving an equation that says that v(t) is equal to that initial value, which is v(0).

 

[docr.sg]

Yes, find out the initial value, in other words, when t = 0. What you want is to get that same value after some period of time.
Get back on what you have tried, and I will share more details about the answer.