An engineer wants to determine how the weight of a gas-powered car, x, affects gas mileage, y. The accompanying data represent the weights of various domestic cars and their miles per gallon in the city for the most recent model year. Complete parts (a) through (d) below. Click here to view the weight and gas mileage data. (a) Find the least-squares regression line treating weight as the explanatory variable and miles per gallon as the response variable. y = 40.79098 x + 0 (Round the x coefficient to five decimal places as needed. Round the constant to two decimal places as needed.)Car Weight and MPG Weight Miles per (pounds), x Gallon, y 3671 17 3894 17 2680 26 3455 20 3406 22 2868 23 3658 18 2555 23 3485 19 3744 16 3301 17