hard · SAT Math
A shipping company recorded the weight, in pounds, and the shipping cost, in dollars, for several packages. Weight in lb (x) | Shipping Cost in $ (y) 2 | 8.40 4 | 11.80 6 | 15.20 8 | 18.60 10 | 22.00 12 | 25.40 A line of best fit for the data is given by y = 1.7x + 5.0, where x is the package weight in pounds and y is the predicted shipping cost in dollars.
Which statement best interprets the meaning of the slope of this line of best fit in context?
- For each additional pound of weight, the predicted cost decreases by $1.70.
- For each additional pound of weight, the predicted cost increases by $1.70.
- For each additional dollar in shipping cost, the weight increases by 1.7 pounds.
- A package that weighs 0 pounds is predicted to cost $1.70.
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