Find the line of best fit for the following set of data: x y
2 -2.9
3.5 -2
-1.4 -4.8
4.2 -1.5
0 -4
-2.8 -6
1.5 -3.5

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.