The graph of a quadratic function has vertex (1, 4) and passes through the point (3,-8). What is the equation of the quadratic function?

How do you find the circumfrance of a circle?

Nikolas calculated the volume of the prism. his work is shown below.

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.