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Solve the system of equations. y= 2x y= x^2 - 15

What is the slope of the line that contains the points (-2,1) and (0,-3)

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.