Ruth bought a piece of farm machinery valued at $50, 000. Over a period of 10 years, the machinery lost value at a constant rate. The graph below models this loss of value. Which statement most closely matches this relationship?

- anonymous

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- anonymous

@dan815

- anonymous

@sleepyjess

- sleepyjess

Welcome to OpenStudy! Could you post the graph :3

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## More answers

- anonymous

I know the answer it is Each year, the machinery loses a value of $4, 500 I just need an explanation on why it is 4,500

- anonymous

@sleepyjess

- anonymous

@NotTim

- NotTim

wat

- NotTim

how did you even get my name. i haven't been on for more than 2 sec, for more than 7 months.

- NotTim

hey, what graph.

- anonymous

that's not the question

- NotTim

the graph isn't part of the question?

- anonymous

let me get the graph

- anonymous

##### 1 Attachment

- NotTim

thx mate.

- NotTim

now, tell me what formula you are going to use.

- anonymous

- NotTim

also, what statement.

- anonymous

- NotTim

I mean, what do you, dear fellow, mean by "Which statement most closely matches this relationship?"

- anonymous

- NotTim

in science, its important to know the process almost more than the answer. when you, "which statements", it sounds like a multiple choice question. is it?

- anonymous

yes

- NotTim

Wait, I think I understand you slightly. You already googled the answer, but wanna know how to get there. Awesome. Alright, important thing first is to determine the formula for this situation.

- NotTim

Its a linear line, going down. Which means it has slope.

- NotTim

An equation for slope is y=mx+b.

- anonymous

ok and yes I admit I googled the answer

- NotTim

Substitute any 2 lines into y=mx+b, where (x,y) is a point on the line. Don't worry lots of children do it. I'm jsut glad you want to figure out the real process like real scientists actually do.

- NotTim

Wait what grade level are you.

- anonymous

7

- NotTim

Oh god.

- NotTim

What am I doing.

- NotTim

Uh.

- anonymous

is this Substitute any 2 lines into y=mx+b, where (x,y) is a point on the line. the explanation

- NotTim

Wait no you can't use that.

- NotTim

That's like grade 9 stuff. Did you guys already study slope of the line?

- anonymous

nop that's why I want an explanation

- NotTim

That would be an explanation if you were in a higher grade.

- NotTim

Wait how is it 4500.

- anonymous

trust me it is the right answer

- anonymous

I asked my teacher if it was the right answer and he said yes

- NotTim

Based on both visual perception and visually used data and its calculation, I got a difference answer. Where'd your teacher get his degree?

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