1/2 * x ^ 2 + 2/3 * y

if x = - 4 and y = 9/2

What is the slope of a line that is perpendicular to y = 3x + 1

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

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.