SOLUTION: I need help:A formula in the form: y=mx+b models the value, y, of a new car x years after the initial purchase in 2000. Would you expect m to be positive, negative, or zero? Expla

Question 953830: I need help:A formula in the form: y=mx+b models the value, y, of a new car x years after the initial purchase in 2000. Would you expect m to be positive, negative, or zero? Explain your answer to get full credit?
Found 3 solutions by stanbon, bijaysumi, MathTherapy:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
I need help:A formula in the form: y=mx+b models the value, y, of a new car x years after the initial purchase in 2000. Would you expect m to be positive, negative, or zero? Explain your answer to get full credit?
The value will go down as the number of years grows.
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So the slope must be downward, i.e. negative
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Cheers,
Stan H.
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Answer by bijaysumi(6)   (Show Source): You can put this solution on YOUR website!
-ve. So that present value will be less than 2000 the initial value.
Answer by MathTherapy(10557)   (Show Source): You can put this solution on YOUR website!

I need help:A formula in the form: y=mx+b models the value, y, of a new car x years after the initial purchase in 2000. Would you expect m to be positive, negative, or zero? Explain your answer to get full credit?

The value (y) DECREASES as time (x) INCREASES. Therefore, slope, or m < 0, or NEGATIVE.
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