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Can you help me with this linear model question?

Asked by kittykat219 (136points) October 2nd, 2011

Hello
I’ve been assigned this question but I don’t really understand it. :/

There is a spring that is the length of 8cm when a 20 gram weight hangs at the bottom. Each additional gram stretches the spring another 0.15 cm. I’m supposed to write a linear model for this.

I want to say that 0.15 equals the slope and that X is 8 and Y is 20 but then it doesn’t work out. Do you have any ideas?

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