W10. 98.The maximum speed of Arthur's semitrailer truck up a certain hill changes linearly with respect to how much its cargo weighs. With 13 tons of cargo, the trucks maximum speed is 50.54 miles per hour, and with 19 tons of cargo, the trucks maximum speed is 48.02 miles per hour. (a) The trucks maximum speedsin miles per hour can be described as a linear function of the weightxxof the cargo in tons:s=mx+b. Findmandb. m= b=

(b) According to the model, when will the truck be unable to ascend the steep hill? Answer = when the weight of cargo exceeds _____ tons. (Round to 2 decimal places.) (c) Using your rounded answer from part (b), what is a reasonable choice for the domain of the model? Domain:<x< (d) What is the range of the model? Range:<s<