linear graphs
write equations for the three companies
Andy: C = 4D + 4
Brandy: C = 2D + 8
Candy: C = 28
Brandy: C = 2D + 8
Candy: C = 28
draw graphs for the three companies charges - above
at what distance do andy and brandy cost the same?
Andy and Brandy cost the same at a distance of 2 km. The cost for this is $12. Looking at my graph, this is the point where the two lines intersect (2,12)
which company would be cheapest to allerton and why
Looking at my table, the cheapest company to use for Allerton is