Write an equation in point-slope format of the line having the given slope that contains the given point. 1. m=1/4, (3,-1)
2. m=0, (-2,6)
3. m=-1, (-2, 3)
4. m=-2, (-6,-7)

The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) compute the z-score corresponding to the individual who obtained 42.342.3 miles per gallon. interpret this result.