HELP ME PLEASE !!!!!!! WILL GIVE 50 pts
The function f(x) = –x2 + 18x – 72 models the daily profit, in dollars, a gym makes for selling memberships, where x is the number of memberships sold, and f(x) is the amount of profit. Part A: Determine the vertex. What does this calculation mean in the context of the problem? (5 points) Part B: Determine the x-intercepts. What do these values mean in the context of the problem? )
Vertex formula = -b/2a -18/1 = 18. However, this is just the x value, the vertex is (x,y) -18*2 + 18(18) - 72 = 576 A) (18,576) 576 dollars made with 18 members is the highest amount made in one day.
