HELP
How old will my dog be when he starts making my friend exactly $543, in other words he costs (-$543)?
** see attached images

Question

HELP
How old will my dog be when he starts making my friend exactly $543, in other words he costs (-$543)?
** see attached images

anonymous · Answer

attachment

anonymous · Answer

@zepdrix would you be able to help?

zepdrix · Answer

omg so many worrrrds :(
so much to reeeadddd....

anonymous · Answer

@zepdrix I'm sorry ): the main question I need help with is whats boxed in the red. everything else is just instructions

zepdrix · Answer

So I was just testing a few points in the equation in part A that you got.
Looks pretty accurate :)

zepdrix · Answer

Not part A, I mean uh.... number 1 .. from the second set.

anonymous · Answer

haha I gotcha. Im just confused how to find #4? :/

zepdrix · Answer

$$\Large\rm y=-484.48x+4882.2$$This tells us different costs, $\Large\rm y$.
So they want to know, approximately, when will our cost be $\Large\rm -543$.

zepdrix · Answer

Let that be your cost, your y,
$$\Large\rm -543=-484.48x+4882.2$$and solve for the x (age) that corresponds to this value!

anonymous · Answer

@zepdrix I actually just wrote that down on my paper! phew :)

zepdrix · Answer

ohhh too quick for me c: hah.