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Can you help me please ?
A formula in the form y equals m x plus b models the value, y, of a new car x years after the initial purchase in 2010. Would you expect b to be positive, negative, or zero?
2 Answers
- Steve ALv 74 years ago
I expect b to be the original price, so positive.
I expect m to be negative, as the value of the car decreases over time.
y = -3000x + 20,000 would be an example of what I'd expect.
- Randy PLv 74 years ago
y = mx + b
y is the value x years after purchase.
b is the value of y when x = 0, so that's the value of the car when it's brand new.
Do you expect the value of a brand new car to be positive, negative or zero?
