Question 1: Find the value of pif the focus of a parabola is (-3, -1) and the directrix is y= 3. 1
2
3
4
5
6
Question 2: If a parabola has a directrix of y = 4 and a focus at (3.-2). Select the
coordinates of the vertex.
A (3,-8)
B(3,1)
C(3,7)
D(0,1)
E(6,1)

Need with work

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.