An engineer wants to determine how the weight of agas-powered car,x, affects gasmileage, 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.

"Weight (pounds), x","Miles per Gallon, y"

3834,16

3918,16

2799,24

3496,19

3309,21

2970,23

3643,16

2530,25

3430,19

3730,18