- #1
physicsgal
- 164
- 0
1) "find the vertex algebraically"
y= -x^2 - 3
y = (x - 3)(x+1)??
(the -x is throwing me off)
2) a movie theatre sells tickets for $8.5 each. they are considering raising the prices but know that for every 50 cents the price is raised, 20 fewer people go to the movies. R = -40c^2 + 84c
c = ticket cost
R = revenue
what should the theatre charge to maximize revenue?
for this one i can probably just use my graphing calculator to find the roots?. but what values should i put in the window? (new to using graphing calculator)
~Amy
y= -x^2 - 3
y = (x - 3)(x+1)??
(the -x is throwing me off)
2) a movie theatre sells tickets for $8.5 each. they are considering raising the prices but know that for every 50 cents the price is raised, 20 fewer people go to the movies. R = -40c^2 + 84c
c = ticket cost
R = revenue
what should the theatre charge to maximize revenue?
for this one i can probably just use my graphing calculator to find the roots?. but what values should i put in the window? (new to using graphing calculator)
~Amy