A car requires 22 litres of petrol to travel a distance of 259.6 km. Find
1. The distance that the car can travel on 63 litres of petrol
2. The amount that the car owner has to pay to travel a distance of 2013.2 km if a litre of petrol costs $1.99.

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas