Question

PLEASE solve : Suppose that in 2001, the average cost of a gallon of milk was $2.43. In 2007 the average price was $4.21. Assuming the relationship is linear, find the equation of the line that models the price of milk over time since 1999. Round to the nearest thousandth.

Answer 1

Let x represent the year sine 1999, and y represent the average price.
now 2001 means 1999+2, so the x value will be 2.and y value is 2.43
so the first point is : (2,2.43)
understood this ?
can u tell me 2nd point ?