What are the solutions to a quadratic equation? a.) Where the parabola crosses the x-axis

b.) Where the parabola crosses the y-axis

c.) Where the parabola intersects its vertex

d.) Where the parabola intersects its axis of symmetry

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.