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?

  1. For each additional pound of weight, the predicted cost decreases by $1.70.
  2. For each additional pound of weight, the predicted cost increases by $1.70.
  3. For each additional dollar in shipping cost, the weight increases by 1.7 pounds.
  4. A package that weighs 0 pounds is predicted to cost $1.70.

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