It would moat likly be y=-2 due to it having to be perpendicular to the y axis and pass through the 5,-2 point
For 21 Oz, price is 2.94
So, for 1 Oz, it would be: 2.94 / 21 = 0.14
In short, Your Answer would be $0.14 cereal per oz.
Hope this helps!
2,000 rupees to U.S. dollars is $29.50
Hope this helps :)
The range would only include positive numbers.